diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 19677304d4f..8257eacdfa5 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -10,6 +10,9 @@ on:
   push:
     branches:
     - import-2.1.x
+    paths:
+      - 'config/**'
+      - 'bin/mfconfig'
 
 jobs:
   deploy:
@@ -19,101 +22,6 @@ jobs:
     - name: Check out
       uses: actions/checkout@v4
 
-    # For each directory containing a changed config file, copy the .h files and build the code:
+    # Run the mfconfig script with CI action
     - name: Deploy bugfix-2.1.x
-      run: |
-        IMPORT=import-2.1.x
-        EXPORT=bugfix-2.1.x
-        CEXA=config/examples
-        CDEF=config/default
-        BC=Configuration.h
-        AC=Configuration_adv.h
-
-        git config user.email "thinkyhead@users.noreply.github.com"
-        git config user.name "Scott Lahteine"
-
-        echo "- Initializing BASE branch..."
-
-        # Copy to a temporary location
-        TEMP=$( mktemp -d ) ; cp -R config $TEMP
-
-        # Strip all #error lines
-        IFS=$'\n'; set -f
-        for fn in $( find $TEMP/config -type f -name "Configuration.h" ); do
-          sed -i~ -e "20,30{/#error/d}" "$fn"
-          rm "$fn~"
-        done
-        unset IFS; set +f
-
-        # Create 'BASE' as a copy of 'init-repo' (README, LICENSE, etc.)
-        git fetch origin init-repo >/dev/null
-        git checkout origin/init-repo -b BASE >/dev/null || exit
-
-        # Copy all config files into place
-        echo "- Copying configs from fresh $IMPORT..."
-        cp -R "$TEMP/config" . >/dev/null
-
-        echo "- Deleting extras"
-
-        # Delete anything that's not a Configuration file
-        find config -type f \! -name "Conf*.h" -exec rm "{}" \;
-
-        # Init Cartesian/SCARA/TPARA configurations to default
-        echo "- Initializing configs to default state..."
-
-        find "$CEXA" -name $BC -print0 \
-          | while read -d $'\0' F ; do cp "$CDEF/$BC" "$F" >/dev/null ; done
-        find "$CEXA" -name $AC -print0 \
-          | while read -d $'\0' F ; do cp "$CDEF/$AC" "$F" >/dev/null ; done
-
-        # Update the %VERSION% in the README.md file
-        VERS=$( echo $EXPORT | sed 's/release-//' )
-        eval "sed -E -i~ -e 's/%VERSION%/$VERS/g' README.md"
-        rm -f README.md~
-
-        # Commit the 'BASE', ready for customizations
-        git add . >/dev/null && git commit --amend --no-edit >/dev/null
-
-        # Create a new branch from 'BASE' for the final result
-        echo "- Creating 'built-temp' branch..."
-        git checkout -b built-temp >/dev/null || exit
-
-        # Delete temporary branch
-        git branch -D BASE 2>/dev/null
-
-        echo "- Applying customizations..."
-        cp -R "$TEMP/config" .
-        find config -type f \! -name "Configuration*" -exec rm "{}" \;
-
-        addpathlabels() {
-          cd $CEXA
-          find . -name "Conf*.h" -print0 | while read -d $'\0' fn ; do
-            fldr=$(dirname "$fn" | sed "s/^\.\///")
-            blank_line=$(awk '/^\s*$/ {print NR; exit}' "$fn")
-            sed -i~ "${blank_line}i\\\n#define CONFIG_EXAMPLES_DIR \"$fldr\"" "$fn"
-            rm -f "$fn~"
-          done
-          cd -
-        }
-
-        echo "- Applying path labels..."
-        addpathlabels >/dev/null 2>&1
-
-        git add . >/dev/null && git commit -m "Examples Customizations" >/dev/null
-
-        echo "- Adding all the extras..."
-        cp -R "$TEMP/config" .
-
-        echo "- Applying path labels..."
-        addpathlabels >/dev/null 2>&1
-
-        git add . >/dev/null && git commit -m "Examples Extras" >/dev/null
-
-        echo "- Replace $EXPORT branch"
-        git fetch origin $EXPORT >/dev/null
-        git checkout >/dev/null $EXPORT
-        git reset --hard built-temp
-        git push -f
-        git branch -D built-temp
-
-        rm -rf $TEMP
+      run: bin/mfconfig CI
diff --git a/.gitignore b/.gitignore
index 5621870d91e..77ba86927ad 100644
--- a/.gitignore
+++ b/.gitignore
@@ -40,3 +40,4 @@ applet/
 
 # Tools
 .vscode/
+.zed/
diff --git a/bin/mfconfig b/bin/mfconfig
new file mode 100755
index 00000000000..537eda305b3
--- /dev/null
+++ b/bin/mfconfig
@@ -0,0 +1,250 @@
+#!/usr/bin/env python3
+#
+# mfconfig [manual|init|repath] [source] [dest] [repo-path]
+#
+# Operate on the MarlinFirmware/Configurations repository.
+#
+# The MarlinFirmware/Configurations layout could be broken up into branches,
+# but this makes management more complicated and requires more commits to
+# perform the same operation, so this uses a single branch with subfolders.
+#
+# init - Initialize the repo with a base commit and changes:
+#   - Source will be an 'import' branch containing all current configs.
+#   - Create an empty 'WORK' branch from 'init-repo'.
+#   - Add Marlin config files, but reset all to defaults.
+#   - Commit this so changes will be clear in following commits.
+#   - Add changed Marlin config files and commit.
+#
+# manual - Import changes from a local Marlin folder, then init.
+#   - Replace 'default' configs with your local Marlin configs.
+#   - Wait for manual propagation to the rest of the configs.
+#   - Run init with the given 'source' and 'dest'
+#
+# repath - Add path labels to all config files, if needed
+#  - Add a #define CONFIG_EXAMPLES_DIR to each Configuration*.h file.
+#
+# CI - Run in CI mode, using the current folder as the repo.
+#    - For GitHub Actions to update the Configurations repo.
+#
+import os, sys, subprocess, shutil, datetime, tempfile
+from pathlib import Path
+
+# Set to 1 for extra debug commits (no deployment)
+DEBUG = 0
+
+# Get the shell arguments into ACTION, IMPORT, and EXPORT
+ACTION = sys.argv[1] if len(sys.argv) > 1 else 'manual'
+IMPORT = sys.argv[2] if len(sys.argv) > 2 else 'import-2.1.x'
+EXPORT = sys.argv[3] if len(sys.argv) > 3 else 'bugfix-2.1.x'
+
+# Get repo paths
+CI = False
+if ACTION == 'CI':
+    _REPOS = "."
+    REPOS = Path(_REPOS)
+    CONFIGREPO = REPOS
+    ACTION = 'init'
+    CI = True
+else:
+    _REPOS = sys.argv[4] if len(sys.argv) > 4 else '~/Projects/Maker/Firmware'
+    REPOS = Path(_REPOS).expanduser()
+    CONFIGREPO = REPOS / "Configurations"
+
+def usage():
+    print(f"Usage: {os.path.basename(sys.argv[0])} [manual|init|repath] [source] [dest] [repo-path]")
+
+if ACTION not in ('manual','init','repath'):
+    print(f"Unknown action '{ACTION}'")
+    usage()
+    sys.exit(1)
+
+CONFIGCON = CONFIGREPO / "config"
+CONFIGDEF = CONFIGCON / "default"
+CONFIGEXA = CONFIGCON / "examples"
+
+# Configurations repo folder must exist
+if not CONFIGREPO.exists():
+    print(f"Can't find Configurations repo at {_REPOS}")
+    sys.exit(1)
+
+# Run git within CONFIGREPO
+GITSTDERR = None if DEBUG else subprocess.DEVNULL
+def git(etc):
+    if DEBUG:
+        print(f"> git {' '.join(etc)}")
+        if etc[0] == "push":
+            info("*** DRY RUN ***")
+            return subprocess.run(["echo"])
+    return subprocess.run(["git"] + etc, cwd=CONFIGREPO, stdout=subprocess.PIPE, stderr=GITSTDERR)
+
+# Get the current branch name
+def branch(): return git(["rev-parse", "--abbrev-ref", "HEAD"])
+
+# git add . ; git commit -m ...
+def commit(msg, who="."): git(["add", who]) ; return git(["commit", "-m", msg])
+
+# git checkout ...
+def checkout(etc): return git(["checkout"] + ([etc] if isinstance(etc, str) else etc))
+
+# git branch -D ...
+def gitbd(name): return git(["branch", "-D", name]).stdout
+
+# git status --porcelain : to check for changes
+def changes(): return git(["status", "--porcelain"]).stdout.decode().strip()
+
+# Configure git user
+git(["config", "user.email", "thinkyhead@users.noreply.github.com"])
+git(["config", "user.name", "Scott Lahteine"])
+
+# Stash uncommitted changes at the destination?
+if changes():
+    print(f"There are uncommitted Configurations repo changes.")
+    STASH_YES = input("Stash changes? [Y/n] ") ; print()
+    if STASH_YES not in ('Y','y',''): print("Can't continue") ; sys.exit()
+    git(["stash", "-m", f"!!GitHub_Desktop<{branch()}>"])
+    if changes(): print(f"Can't stash changes!") ; sys.exit(1)
+
+def info(msg):
+  infotag = "[INFO] " if CI else ""
+  print(f"- {infotag}{msg}")
+
+def add_path_labels():
+    info("Adding path labels to all configs...")
+    for fn in CONFIGEXA.glob("**/Configuration*.h"):
+        fldr = str(fn.parent.relative_to(CONFIGCON)).replace("examples/", "")
+        with open(fn, 'r') as f:
+            lines = f.readlines()
+            emptyline = -1
+            for i, line in enumerate(lines):
+                issp = line.isspace()
+                if emptyline < 0:
+                    if issp: emptyline = i
+                elif not issp:
+                    if not "CONFIG_EXAMPLES_DIR" in line:
+                        lines.insert(emptyline, f"\n#define CONFIG_EXAMPLES_DIR \"{fldr}\"\n")
+                        with open(fn, 'w') as f: f.writelines(lines)
+                        break
+
+if ACTION == "repath":
+    add_path_labels()
+
+elif ACTION == "manual":
+
+    MARLINREPO = Path(REPOS / "MarlinFirmware")
+    if not MARLINREPO.exists():
+        print("Can't find MarlinFirmware at {_REPOS}!")
+        sys.exit(1)
+
+    info(f"Updating '{IMPORT}' from Marlin...")
+
+    checkout(IMPORT)
+
+    # Replace examples/default with our local copies
+    shutil.copy(MARLINREPO / "Marlin" / "Configuration*.h", CONFIGDEF)
+
+    #git add . && git commit -m "Changes from Marlin ($(date '+%Y-%m-%d %H:%M'))."
+    #commit(f"Changes from Marlin ({datetime.datetime.now()}).")
+
+    print(f"Prepare the import branch and continue when ready.")
+    INIT_YES = input("Ready to init? [y/N] ") ; print()
+    if INIT_YES not in ('Y','y'): print("Done.") ; sys.exit()
+
+    ACTION = 'init'
+
+if ACTION == "init":
+    print(f"Building branch '{EXPORT}'...")
+    info("Init WORK branch...")
+
+    info(f"Copy {IMPORT} to temporary location...")
+
+    # Use the import branch as the source
+    result = checkout(IMPORT)
+    if result.returncode != 0:
+        print(f"Can't find branch '{IMPORT}'!") ; sys.exit()
+
+    # Copy to a temporary location
+    TEMP = Path(tempfile.mkdtemp())
+    TEMPCON = TEMP / "config"
+    shutil.copytree(CONFIGCON, TEMPCON)
+
+    # Strip #error lines from Configuration.h
+    for fn in TEMPCON.glob("**/Configuration.h"):
+        with open(fn, 'r') as f:
+            lines = f.readlines()
+            outlines = []
+            for line in lines:
+                if not line.startswith("#error"):
+                    outlines.append(line)
+            with open(fn, 'w') as f:
+                f.writelines(outlines)
+
+    # Create a fresh 'WORK' as a copy of 'init-repo' (README, LICENSE, etc.)
+    gitbd("WORK")
+    if CI: git(["fetch", "origin", "init-repo"])
+    checkout(["init-repo", "-b", "WORK"])
+
+    # Copy default configurations into the repo
+    info("Create configs in default state...")
+    for fn in TEMPCON.glob("**/*"):
+        if fn.is_dir(): continue
+        relpath = fn.relative_to(TEMPCON)
+        os.makedirs(CONFIGCON / os.path.dirname(relpath), exist_ok=True)
+        if fn.name.startswith("Configuration"):
+            shutil.copy(TEMPCON / "default" / fn.name, CONFIGCON / relpath)
+
+    # DEBUG: Commit the reset for review
+    if DEBUG: commit("[DEBUG] Create defaults")
+
+    def replace_in_file(fn, search, replace):
+        with open(fn, 'r') as f: lines = f.read()
+        with open(fn, 'w') as f: f.write(lines.replace(search, replace))
+
+    # Update the %VERSION% in the README.md file
+    replace_in_file(CONFIGREPO / "README.md", "%VERSION%", EXPORT.replace("release-", ""))
+
+    # Commit all changes up to now; amend if not debugging
+    if DEBUG:
+        commit("[DEBUG] Update README.md version", "README.md")
+    else:
+        git(["add", "."])
+        git(["commit", "--amend", "--no-edit"])
+
+    # Copy configured Configuration*.h to the working copy
+    info("Copy examples into place...")
+    for fn in TEMPCON.glob("examples/**/Configuration*.h"):
+        shutil.copy(fn, CONFIGCON / fn.relative_to(TEMPCON))
+
+    # Put #define CONFIG_EXAMPLES_DIR .. before the first blank line
+    add_path_labels()
+
+    info("Commit config changes...")
+    commit("Examples Customizations")
+
+    # Copy over all files not matching Configuration*.h to the working copy
+    info("Copy extras into place...")
+    for fn in TEMPCON.glob("examples/**/*"):
+        if fn.is_dir(): continue
+        if fn.name.startswith("Configuration"): continue
+        shutil.copy(fn, CONFIGCON / fn.relative_to(TEMPCON))
+
+    info("Commit extras...")
+    commit("Examples Extras")
+
+    # Delete the temporary folder
+    shutil.rmtree(TEMP)
+
+    # Push to the remote (if desired)
+    if CI:
+        PUSH_YES = 'Y'
+    else:
+        print()
+        PUSH_YES = input(f"Push to upstream/{EXPORT}? [y/N] ")
+        print()
+
+    REMOTE = "origin" if CI else "upstream"
+
+    if PUSH_YES in ('Y','y'):
+        info("Push to remote...")
+        git(["push", "-f", REMOTE, f"WORK:{EXPORT}"])
+
+    info("Done.")
diff --git a/config/default/Configuration.h b/config/default/Configuration.h
index 253c0234999..1c2bf38a951 100644
--- a/config/default/Configuration.h
+++ b/config/default/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/default/Configuration_adv.h b/config/default/Configuration_adv.h
index df3e109acdc..e8150eacc8f 100644
--- a/config/default/Configuration_adv.h
+++ b/config/default/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/3DFabXYZ/Migbot/Configuration.h b/config/examples/3DFabXYZ/Migbot/Configuration.h
index 77f172e89d4..78a32763159 100644
--- a/config/examples/3DFabXYZ/Migbot/Configuration.h
+++ b/config/examples/3DFabXYZ/Migbot/Configuration.h
@@ -109,7 +109,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -388,14 +388,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1479,7 +1480,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1649,6 +1651,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1686,8 +1689,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    5 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  3 // (mm) Z Clearance between probe points
diff --git a/config/examples/3DFabXYZ/Migbot/Configuration_adv.h b/config/examples/3DFabXYZ/Migbot/Configuration_adv.h
index b216dc129fa..3bdeb32c140 100644
--- a/config/examples/3DFabXYZ/Migbot/Configuration_adv.h
+++ b/config/examples/3DFabXYZ/Migbot/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4408,44 +4427,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4455,11 +4519,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4470,6 +4549,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4492,7 +4633,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/3DMatik/XL/Configuration.h b/config/examples/3DMatik/XL/Configuration.h
index 99e64e9c9ed..f9cb6fd3f44 100644
--- a/config/examples/3DMatik/XL/Configuration.h
+++ b/config/examples/3DMatik/XL/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/3DMatik/XL/Configuration_adv.h b/config/examples/3DMatik/XL/Configuration_adv.h
index b6c4a5c203b..c6704fdceeb 100644
--- a/config/examples/3DMatik/XL/Configuration_adv.h
+++ b/config/examples/3DMatik/XL/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/ADIMLab/Gantry v1/Configuration.h b/config/examples/ADIMLab/Gantry v1/Configuration.h
index e17adab3724..ba68301b6ef 100644
--- a/config/examples/ADIMLab/Gantry v1/Configuration.h	
+++ b/config/examples/ADIMLab/Gantry v1/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/ADIMLab/Gantry v1/Configuration_adv.h b/config/examples/ADIMLab/Gantry v1/Configuration_adv.h
index 01ac944b0a8..2f0c2bb14a2 100644
--- a/config/examples/ADIMLab/Gantry v1/Configuration_adv.h	
+++ b/config/examples/ADIMLab/Gantry v1/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/ADIMLab/Gantry v2/Configuration.h b/config/examples/ADIMLab/Gantry v2/Configuration.h
index 3644dbf19cf..b1a54f1154b 100644
--- a/config/examples/ADIMLab/Gantry v2/Configuration.h	
+++ b/config/examples/ADIMLab/Gantry v2/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/ADIMLab/Gantry v2/Configuration_adv.h b/config/examples/ADIMLab/Gantry v2/Configuration_adv.h
index 001ffa96822..698c09a0ef1 100644
--- a/config/examples/ADIMLab/Gantry v2/Configuration_adv.h	
+++ b/config/examples/ADIMLab/Gantry v2/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Alfawise/U20-bltouch/Configuration.h b/config/examples/Alfawise/U20-bltouch/Configuration.h
index fe54dded413..9c1fc689d54 100644
--- a/config/examples/Alfawise/U20-bltouch/Configuration.h
+++ b/config/examples/Alfawise/U20-bltouch/Configuration.h
@@ -146,7 +146,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 3
@@ -442,14 +442,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1546,7 +1547,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1716,6 +1718,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1753,8 +1756,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Alfawise/U20-bltouch/Configuration_adv.h b/config/examples/Alfawise/U20-bltouch/Configuration_adv.h
index 36ae171ce45..ffeab9f56f9 100644
--- a/config/examples/Alfawise/U20-bltouch/Configuration_adv.h
+++ b/config/examples/Alfawise/U20-bltouch/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 60        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 10    // (°C)
+  #define THERMAL_PROTECTION_PERIOD        60 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS    10 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1114,19 +1116,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1136,8 +1141,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1190,7 +1195,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1503,8 +1508,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1521,6 +1535,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1535,8 +1553,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1567,6 +1583,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2575,7 +2594,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2589,7 +2608,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2723,7 +2742,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4422,44 +4441,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4469,11 +4533,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4484,6 +4563,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4506,7 +4647,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Alfawise/U20/Configuration.h b/config/examples/Alfawise/U20/Configuration.h
index cb435cd7ca6..b2ad0075a0f 100644
--- a/config/examples/Alfawise/U20/Configuration.h
+++ b/config/examples/Alfawise/U20/Configuration.h
@@ -146,7 +146,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 3
@@ -442,14 +442,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1547,7 +1548,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1717,6 +1719,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1754,8 +1757,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Alfawise/U20/Configuration_adv.h b/config/examples/Alfawise/U20/Configuration_adv.h
index dfc19daddfe..672d2f47c67 100644
--- a/config/examples/Alfawise/U20/Configuration_adv.h
+++ b/config/examples/Alfawise/U20/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 60        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 10    // (°C)
+  #define THERMAL_PROTECTION_PERIOD        60 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS    10 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/AliExpress/CL-260/Configuration.h b/config/examples/AliExpress/CL-260/Configuration.h
index c079044935e..05a857e1061 100644
--- a/config/examples/AliExpress/CL-260/Configuration.h
+++ b/config/examples/AliExpress/CL-260/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/AliExpress/CL-260/Configuration_adv.h b/config/examples/AliExpress/CL-260/Configuration_adv.h
index df3e109acdc..e8150eacc8f 100644
--- a/config/examples/AliExpress/CL-260/Configuration_adv.h
+++ b/config/examples/AliExpress/CL-260/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/AliExpress/UM2pExt/Configuration.h b/config/examples/AliExpress/UM2pExt/Configuration.h
index 9acc67cb213..946392655c6 100644
--- a/config/examples/AliExpress/UM2pExt/Configuration.h
+++ b/config/examples/AliExpress/UM2pExt/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1908,7 +1911,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/AliExpress/UM2pExt/Configuration_adv.h b/config/examples/AliExpress/UM2pExt/Configuration_adv.h
index cc251c2046f..b705b884d39 100644
--- a/config/examples/AliExpress/UM2pExt/Configuration_adv.h
+++ b/config/examples/AliExpress/UM2pExt/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4414,44 +4433,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4461,11 +4525,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4476,6 +4555,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4498,7 +4639,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Anet/A2/Configuration.h b/config/examples/Anet/A2/Configuration.h
index 178beeb60ca..bf2cf24aa82 100644
--- a/config/examples/Anet/A2/Configuration.h
+++ b/config/examples/Anet/A2/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Anet/A2/Configuration_adv.h b/config/examples/Anet/A2/Configuration_adv.h
index f440be231e7..65e0ee66826 100644
--- a/config/examples/Anet/A2/Configuration_adv.h
+++ b/config/examples/Anet/A2/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Anet/A2plus/Configuration.h b/config/examples/Anet/A2plus/Configuration.h
index 28f3fd04b9f..954b865c79b 100644
--- a/config/examples/Anet/A2plus/Configuration.h
+++ b/config/examples/Anet/A2plus/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Anet/A2plus/Configuration_adv.h b/config/examples/Anet/A2plus/Configuration_adv.h
index f440be231e7..65e0ee66826 100644
--- a/config/examples/Anet/A2plus/Configuration_adv.h
+++ b/config/examples/Anet/A2plus/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Anet/A6/Configuration.h b/config/examples/Anet/A6/Configuration.h
index 17d69ba1d0f..6c6070ca642 100644
--- a/config/examples/Anet/A6/Configuration.h
+++ b/config/examples/Anet/A6/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1494,7 +1495,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1678,6 +1680,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1715,8 +1718,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #if 1 // 0 for less clearance
   #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
diff --git a/config/examples/Anet/A6/Configuration_adv.h b/config/examples/Anet/A6/Configuration_adv.h
index 78af11cc441..92639a3b314 100644
--- a/config/examples/Anet/A6/Configuration_adv.h
+++ b/config/examples/Anet/A6/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 60        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 10    // (°C)
+  #define THERMAL_PROTECTION_PERIOD        60 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS    10 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Anet/A8/Configuration.h b/config/examples/Anet/A8/Configuration.h
index c4ca996e978..a49e1302c17 100644
--- a/config/examples/Anet/A8/Configuration.h
+++ b/config/examples/Anet/A8/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -388,14 +388,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1480,7 +1481,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1650,6 +1652,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1687,8 +1690,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Anet/A8/Configuration_adv.h b/config/examples/Anet/A8/Configuration_adv.h
index 95dce11d71a..46ab871a907 100644
--- a/config/examples/Anet/A8/Configuration_adv.h
+++ b/config/examples/Anet/A8/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 60        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 10    // (°C)
+  #define THERMAL_PROTECTION_PERIOD        60 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS    10 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Anet/A8plus/Configuration.h b/config/examples/Anet/A8plus/Configuration.h
index 3953ed90d8e..93db73b3fbf 100644
--- a/config/examples/Anet/A8plus/Configuration.h
+++ b/config/examples/Anet/A8plus/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -388,14 +388,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1479,7 +1480,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1649,6 +1651,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1686,8 +1689,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Anet/A8plus/Configuration_adv.h b/config/examples/Anet/A8plus/Configuration_adv.h
index 5caf01af492..1df961cd5f9 100644
--- a/config/examples/Anet/A8plus/Configuration_adv.h
+++ b/config/examples/Anet/A8plus/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Anet/A9/Configuration.h b/config/examples/Anet/A9/Configuration.h
index efa108c91fe..9987a1e4f0f 100644
--- a/config/examples/Anet/A9/Configuration.h
+++ b/config/examples/Anet/A9/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Anet/A9/Configuration_adv.h b/config/examples/Anet/A9/Configuration_adv.h
index fcfdbee361d..12ebcf1bc1c 100644
--- a/config/examples/Anet/A9/Configuration_adv.h
+++ b/config/examples/Anet/A9/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Anet/E10/Configuration.h b/config/examples/Anet/E10/Configuration.h
index 6d2f9b9b5dd..22610ba3c78 100644
--- a/config/examples/Anet/E10/Configuration.h
+++ b/config/examples/Anet/E10/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Anet/E10/Configuration_adv.h b/config/examples/Anet/E10/Configuration_adv.h
index e665be08058..0fd08524f5a 100644
--- a/config/examples/Anet/E10/Configuration_adv.h
+++ b/config/examples/Anet/E10/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 20        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 12     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        20 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS    12 // (°C)
 
   #define ADAPTIVE_FAN_SLOWING                // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   #define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2279,7 +2298,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 2000   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Anet/E16/BTT SKR 1.3/Configuration.h b/config/examples/Anet/E16/BTT SKR 1.3/Configuration.h
index ec2bbe2d186..71d6c29bfe1 100644
--- a/config/examples/Anet/E16/BTT SKR 1.3/Configuration.h	
+++ b/config/examples/Anet/E16/BTT SKR 1.3/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1479,7 +1480,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1649,6 +1651,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1686,8 +1689,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Anet/E16/BTT SKR 1.3/Configuration_adv.h b/config/examples/Anet/E16/BTT SKR 1.3/Configuration_adv.h
index 9d855eecdb0..26dba0b0c5f 100644
--- a/config/examples/Anet/E16/BTT SKR 1.3/Configuration_adv.h	
+++ b/config/examples/Anet/E16/BTT SKR 1.3/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Anet/E16/Stock/Configuration.h b/config/examples/Anet/E16/Stock/Configuration.h
index b4cf0f467f7..2cd7530857c 100644
--- a/config/examples/Anet/E16/Stock/Configuration.h
+++ b/config/examples/Anet/E16/Stock/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1479,7 +1480,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1649,6 +1651,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1686,8 +1689,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Anet/E16/Stock/Configuration_adv.h b/config/examples/Anet/E16/Stock/Configuration_adv.h
index 36571ec8909..67de39396ae 100644
--- a/config/examples/Anet/E16/Stock/Configuration_adv.h
+++ b/config/examples/Anet/E16/Stock/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 20        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 12     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        20 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS    12 // (°C)
 
   #define ADAPTIVE_FAN_SLOWING                // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -1587,7 +1606,7 @@
       //#define BOOT_MARLIN_LOGO_ANIMATED // Animated Marlin logo. Costs ~3260 (or ~940) bytes of flash.
     #endif
     #if ANY(HAS_MARLINUI_U8GLIB, TOUCH_UI_FTDI_EVE, HAS_MARLINUI_HD44780)
-      #define SHOW_CUSTOM_BOOTSCREEN      // Show the bitmap in Marlin/_Bootscreen.h on startup.
+      //#define SHOW_CUSTOM_BOOTSCREEN    // Show the bitmap in Marlin/_Bootscreen.h on startup.
     #endif
   #endif
 
@@ -2279,7 +2298,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Anet/ET4+/Configuration.h b/config/examples/Anet/ET4+/Configuration.h
index 947b4c66ca6..d8d2210668c 100644
--- a/config/examples/Anet/ET4+/Configuration.h
+++ b/config/examples/Anet/ET4+/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1483,7 +1484,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1653,6 +1655,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1690,8 +1693,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1913,7 +1916,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Anet/ET4+/Configuration_adv.h b/config/examples/Anet/ET4+/Configuration_adv.h
index c249597c4bb..338c594ee13 100644
--- a/config/examples/Anet/ET4+/Configuration_adv.h
+++ b/config/examples/Anet/ET4+/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2279,7 +2298,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Anet/ET4-Pro/Configuration.h b/config/examples/Anet/ET4-Pro/Configuration.h
index 8d228a803e9..7ad1adf0186 100644
--- a/config/examples/Anet/ET4-Pro/Configuration.h
+++ b/config/examples/Anet/ET4-Pro/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1483,7 +1484,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1653,6 +1655,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1690,8 +1693,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1913,7 +1916,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Anet/ET4-Pro/Configuration_adv.h b/config/examples/Anet/ET4-Pro/Configuration_adv.h
index c249597c4bb..338c594ee13 100644
--- a/config/examples/Anet/ET4-Pro/Configuration_adv.h
+++ b/config/examples/Anet/ET4-Pro/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2279,7 +2298,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Anet/ET4/Configuration.h b/config/examples/Anet/ET4/Configuration.h
index 5e92dc469a2..dd486e8fe65 100644
--- a/config/examples/Anet/ET4/Configuration.h
+++ b/config/examples/Anet/ET4/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1483,7 +1484,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1653,6 +1655,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1690,8 +1693,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1913,7 +1916,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Anet/ET4/Configuration_adv.h b/config/examples/Anet/ET4/Configuration_adv.h
index 47b3e8f402e..338c594ee13 100644
--- a/config/examples/Anet/ET4/Configuration_adv.h
+++ b/config/examples/Anet/ET4/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Anet/ET4X/Configuration.h b/config/examples/Anet/ET4X/Configuration.h
index 0d0570d1362..c8121d6315a 100644
--- a/config/examples/Anet/ET4X/Configuration.h
+++ b/config/examples/Anet/ET4X/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1483,7 +1484,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1653,6 +1655,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1690,8 +1693,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1913,7 +1916,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Anet/ET4X/Configuration_adv.h b/config/examples/Anet/ET4X/Configuration_adv.h
index 47b3e8f402e..338c594ee13 100644
--- a/config/examples/Anet/ET4X/Configuration_adv.h
+++ b/config/examples/Anet/ET4X/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Anet/ET5-Pro/Configuration.h b/config/examples/Anet/ET5-Pro/Configuration.h
index e7aa5aefda6..d8843631bfe 100644
--- a/config/examples/Anet/ET5-Pro/Configuration.h
+++ b/config/examples/Anet/ET5-Pro/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    0 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1907,7 +1910,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Anet/ET5-Pro/Configuration_adv.h b/config/examples/Anet/ET5-Pro/Configuration_adv.h
index 6a8fc7ef5af..4da5d58379d 100644
--- a/config/examples/Anet/ET5-Pro/Configuration_adv.h
+++ b/config/examples/Anet/ET5-Pro/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 #define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4409,44 +4428,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4456,11 +4520,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4471,6 +4550,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4493,7 +4634,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Anet/ET5/Configuration.h b/config/examples/Anet/ET5/Configuration.h
index 5e01e82cbd7..479a5261182 100644
--- a/config/examples/Anet/ET5/Configuration.h
+++ b/config/examples/Anet/ET5/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    0 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1907,7 +1910,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Anet/ET5/Configuration_adv.h b/config/examples/Anet/ET5/Configuration_adv.h
index 6a8fc7ef5af..4da5d58379d 100644
--- a/config/examples/Anet/ET5/Configuration_adv.h
+++ b/config/examples/Anet/ET5/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 #define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4409,44 +4428,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4456,11 +4520,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4471,6 +4550,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4493,7 +4634,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Anet/ET5X/Configuration.h b/config/examples/Anet/ET5X/Configuration.h
index a6047376e03..f17036c1957 100644
--- a/config/examples/Anet/ET5X/Configuration.h
+++ b/config/examples/Anet/ET5X/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    0 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1907,7 +1910,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Anet/ET5X/Configuration_adv.h b/config/examples/Anet/ET5X/Configuration_adv.h
index 6a8fc7ef5af..4da5d58379d 100644
--- a/config/examples/Anet/ET5X/Configuration_adv.h
+++ b/config/examples/Anet/ET5X/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 #define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4409,44 +4428,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4456,11 +4520,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4471,6 +4550,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4493,7 +4634,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/AnyCubic/Chiron/Configuration.h b/config/examples/AnyCubic/Chiron/Configuration.h
index b326126e2f8..f9c3ac1d0e0 100644
--- a/config/examples/AnyCubic/Chiron/Configuration.h
+++ b/config/examples/AnyCubic/Chiron/Configuration.h
@@ -111,7 +111,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -390,14 +390,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1480,7 +1481,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1650,6 +1652,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1687,8 +1690,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  8 // (mm) Z Clearance between probe points
@@ -2079,7 +2082,7 @@
  * Commands to execute at the end of G29 probing.
  * Useful to retract or move the Z probe out of the way.
  */
-#define EVENT_GCODE_AFTER_G29 "G27/n G1 Y0 F5000"
+#define EVENT_GCODE_AFTER_G29 "G27\nG1 Y0 F5000"
 
 /**
  * Normally G28 leaves leveling disabled on completion. Enable one of
diff --git a/config/examples/AnyCubic/Chiron/Configuration_adv.h b/config/examples/AnyCubic/Chiron/Configuration_adv.h
index e6492f822b5..5691577a347 100644
--- a/config/examples/AnyCubic/Chiron/Configuration_adv.h
+++ b/config/examples/AnyCubic/Chiron/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD     40    // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 10    // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS    10 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/AnyCubic/Mega Zero 2.0/Anycubic V1/Configuration.h b/config/examples/AnyCubic/Mega Zero 2.0/Anycubic V1/Configuration.h
index 4fdd899e646..cd1545ec364 100644
--- a/config/examples/AnyCubic/Mega Zero 2.0/Anycubic V1/Configuration.h	
+++ b/config/examples/AnyCubic/Mega Zero 2.0/Anycubic V1/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/AnyCubic/Mega Zero 2.0/Anycubic V1/Configuration_adv.h b/config/examples/AnyCubic/Mega Zero 2.0/Anycubic V1/Configuration_adv.h
index 02a2b88c665..d5d800f87c7 100644
--- a/config/examples/AnyCubic/Mega Zero 2.0/Anycubic V1/Configuration_adv.h	
+++ b/config/examples/AnyCubic/Mega Zero 2.0/Anycubic V1/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   #define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2279,7 +2298,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/AnyCubic/Mega Zero/Anycubic V1/Configuration.h b/config/examples/AnyCubic/Mega Zero/Anycubic V1/Configuration.h
index 377f0bebc28..f57589abbab 100644
--- a/config/examples/AnyCubic/Mega Zero/Anycubic V1/Configuration.h	
+++ b/config/examples/AnyCubic/Mega Zero/Anycubic V1/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/AnyCubic/Mega Zero/Anycubic V1/Configuration_adv.h b/config/examples/AnyCubic/Mega Zero/Anycubic V1/Configuration_adv.h
index c39fdf8ba89..773b707f9db 100644
--- a/config/examples/AnyCubic/Mega Zero/Anycubic V1/Configuration_adv.h	
+++ b/config/examples/AnyCubic/Mega Zero/Anycubic V1/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   #define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2279,7 +2298,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/AnyCubic/Mega Zero/BigTreeTech SKR Mini MZ V1.0/Configuration.h b/config/examples/AnyCubic/Mega Zero/BigTreeTech SKR Mini MZ V1.0/Configuration.h
index 96c37b7c104..b33e3953923 100644
--- a/config/examples/AnyCubic/Mega Zero/BigTreeTech SKR Mini MZ V1.0/Configuration.h	
+++ b/config/examples/AnyCubic/Mega Zero/BigTreeTech SKR Mini MZ V1.0/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/AnyCubic/Mega Zero/BigTreeTech SKR Mini MZ V1.0/Configuration_adv.h b/config/examples/AnyCubic/Mega Zero/BigTreeTech SKR Mini MZ V1.0/Configuration_adv.h
index c665ecb7a03..0fad9deeb02 100644
--- a/config/examples/AnyCubic/Mega Zero/BigTreeTech SKR Mini MZ V1.0/Configuration_adv.h	
+++ b/config/examples/AnyCubic/Mega Zero/BigTreeTech SKR Mini MZ V1.0/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   #define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2279,7 +2298,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/AnyCubic/Vyper/Configuration.h b/config/examples/AnyCubic/Vyper/Configuration.h
index 84e263c3a1c..2dc6acd9499 100644
--- a/config/examples/AnyCubic/Vyper/Configuration.h
+++ b/config/examples/AnyCubic/Vyper/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1645,8 +1647,9 @@
 #if ENABLED(PROBE_TARE)
   #define PROBE_TARE_TIME  300    // (ms) Time to hold tare pin
   #define PROBE_TARE_DELAY 100    // (ms) Delay after tare before
-  #define PROBE_TARE_STATE LOW   // State to write pin for tare
+  #define PROBE_TARE_STATE LOW    // State to write pin for tare
   #define PROBE_TARE_PIN AUTO_LEVEL_TX_PIN // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    6 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  2 // (mm) Z Clearance between probe points
diff --git a/config/examples/AnyCubic/Vyper/Configuration_adv.h b/config/examples/AnyCubic/Vyper/Configuration_adv.h
index 55eee807b3b..5649eae6cd9 100644
--- a/config/examples/AnyCubic/Vyper/Configuration_adv.h
+++ b/config/examples/AnyCubic/Vyper/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 20        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 8     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        20 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     8 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/AnyCubic/i3 Mega/Trigorilla AVR/Configuration.h b/config/examples/AnyCubic/i3 Mega/Trigorilla AVR/Configuration.h
index bf1af166f9e..d5b2d53b86e 100644
--- a/config/examples/AnyCubic/i3 Mega/Trigorilla AVR/Configuration.h	
+++ b/config/examples/AnyCubic/i3 Mega/Trigorilla AVR/Configuration.h	
@@ -131,7 +131,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -426,14 +426,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1526,7 +1527,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1696,6 +1698,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1733,8 +1736,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -2497,7 +2500,7 @@
 
 #define PREHEAT_2_LABEL       "ABS"
 #define PREHEAT_2_TEMP_HOTEND 235
-#define PREHEAT_2_TEMP_BED    85
+#define PREHEAT_2_TEMP_BED     85
 #define PREHEAT_2_TEMP_CHAMBER 35
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
diff --git a/config/examples/AnyCubic/i3 Mega/Trigorilla AVR/Configuration_adv.h b/config/examples/AnyCubic/i3 Mega/Trigorilla AVR/Configuration_adv.h
index ee0764053bc..6893b0ab54f 100644
--- a/config/examples/AnyCubic/i3 Mega/Trigorilla AVR/Configuration_adv.h	
+++ b/config/examples/AnyCubic/i3 Mega/Trigorilla AVR/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/AnyCubic/i3 Mega/Trigorilla Pro STM32/Configuration.h b/config/examples/AnyCubic/i3 Mega/Trigorilla Pro STM32/Configuration.h
index 17c87b733d7..3edc92cc14e 100644
--- a/config/examples/AnyCubic/i3 Mega/Trigorilla Pro STM32/Configuration.h	
+++ b/config/examples/AnyCubic/i3 Mega/Trigorilla Pro STM32/Configuration.h	
@@ -111,7 +111,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -397,14 +397,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1488,7 +1489,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1658,6 +1660,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1695,8 +1698,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/AnyCubic/i3 Mega/Trigorilla Pro STM32/Configuration_adv.h b/config/examples/AnyCubic/i3 Mega/Trigorilla Pro STM32/Configuration_adv.h
index 4611bb8a347..8d9065391aa 100644
--- a/config/examples/AnyCubic/i3 Mega/Trigorilla Pro STM32/Configuration_adv.h	
+++ b/config/examples/AnyCubic/i3 Mega/Trigorilla Pro STM32/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/AnyCubic/i3/Configuration.h b/config/examples/AnyCubic/i3/Configuration.h
index 33e7c919f55..0c6fad1ab5d 100644
--- a/config/examples/AnyCubic/i3/Configuration.h
+++ b/config/examples/AnyCubic/i3/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -2437,7 +2440,7 @@
 
 #define PREHEAT_2_LABEL       "ABS"
 #define PREHEAT_2_TEMP_HOTEND 240
-#define PREHEAT_2_TEMP_BED    95
+#define PREHEAT_2_TEMP_BED     95
 #define PREHEAT_2_TEMP_CHAMBER 35
 #define PREHEAT_2_FAN_SPEED   255 // Value from 0 to 255
 
diff --git a/config/examples/AnyCubic/i3/Configuration_adv.h b/config/examples/AnyCubic/i3/Configuration_adv.h
index 08fa40532d3..3352c5b098f 100644
--- a/config/examples/AnyCubic/i3/Configuration_adv.h
+++ b/config/examples/AnyCubic/i3/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/ArmEd/Configuration.h b/config/examples/ArmEd/Configuration.h
index 6adca5973a7..2e4713fea34 100644
--- a/config/examples/ArmEd/Configuration.h
+++ b/config/examples/ArmEd/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/ArmEd/Configuration_adv.h b/config/examples/ArmEd/Configuration_adv.h
index c24cee92f50..b120a8a9dce 100644
--- a/config/examples/ArmEd/Configuration_adv.h
+++ b/config/examples/ArmEd/Configuration_adv.h
@@ -310,8 +310,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1087,9 +1087,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1110,19 +1112,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1132,8 +1137,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1186,7 +1191,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1499,8 +1504,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1517,6 +1531,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1531,8 +1549,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1563,6 +1579,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2570,7 +2589,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2584,7 +2603,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2718,7 +2737,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4417,44 +4436,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4464,11 +4528,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4479,6 +4558,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4501,7 +4642,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Artillery/Genius Pro/Configuration.h b/config/examples/Artillery/Genius Pro/Configuration.h
index 1e6e5159d91..8aac8b22f6d 100644
--- a/config/examples/Artillery/Genius Pro/Configuration.h	
+++ b/config/examples/Artillery/Genius Pro/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Artillery/Genius Pro/Configuration_adv.h b/config/examples/Artillery/Genius Pro/Configuration_adv.h
index 74dcdaa7735..578b34f0165 100644
--- a/config/examples/Artillery/Genius Pro/Configuration_adv.h	
+++ b/config/examples/Artillery/Genius Pro/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Artillery/Genius/BLTouch/Configuration.h b/config/examples/Artillery/Genius/BLTouch/Configuration.h
index eba1f986a76..b6df2966bb9 100644
--- a/config/examples/Artillery/Genius/BLTouch/Configuration.h
+++ b/config/examples/Artillery/Genius/BLTouch/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Artillery/Genius/BLTouch/Configuration_adv.h b/config/examples/Artillery/Genius/BLTouch/Configuration_adv.h
index a6c4a393b44..fee00d90bbf 100644
--- a/config/examples/Artillery/Genius/BLTouch/Configuration_adv.h
+++ b/config/examples/Artillery/Genius/BLTouch/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Artillery/Genius/V1/Configuration.h b/config/examples/Artillery/Genius/V1/Configuration.h
index 37eb2f2843d..c162b8aa8e5 100644
--- a/config/examples/Artillery/Genius/V1/Configuration.h
+++ b/config/examples/Artillery/Genius/V1/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Artillery/Genius/V1/Configuration_adv.h b/config/examples/Artillery/Genius/V1/Configuration_adv.h
index b88eea21c0a..0e1725f3333 100644
--- a/config/examples/Artillery/Genius/V1/Configuration_adv.h
+++ b/config/examples/Artillery/Genius/V1/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Artillery/Hornet/Configuration.h b/config/examples/Artillery/Hornet/Configuration.h
index 6dc6bd3d578..73fdec35a67 100644
--- a/config/examples/Artillery/Hornet/Configuration.h
+++ b/config/examples/Artillery/Hornet/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Artillery/Hornet/Configuration_adv.h b/config/examples/Artillery/Hornet/Configuration_adv.h
index d331e2f192f..27f7c012a44 100644
--- a/config/examples/Artillery/Hornet/Configuration_adv.h
+++ b/config/examples/Artillery/Hornet/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Artillery/Sidewinder X1/0.9 BMG - E3D V6/Configuration.h b/config/examples/Artillery/Sidewinder X1/0.9 BMG - E3D V6/Configuration.h
index 95b747d3fea..8e237b1edcb 100644
--- a/config/examples/Artillery/Sidewinder X1/0.9 BMG - E3D V6/Configuration.h	
+++ b/config/examples/Artillery/Sidewinder X1/0.9 BMG - E3D V6/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1493,7 +1494,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1663,6 +1665,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1700,8 +1703,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Artillery/Sidewinder X1/0.9 BMG - E3D V6/Configuration_adv.h b/config/examples/Artillery/Sidewinder X1/0.9 BMG - E3D V6/Configuration_adv.h
index c8c5407013e..918ed4f0db7 100644
--- a/config/examples/Artillery/Sidewinder X1/0.9 BMG - E3D V6/Configuration_adv.h	
+++ b/config/examples/Artillery/Sidewinder X1/0.9 BMG - E3D V6/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Artillery/Sidewinder X1/V1/Configuration.h b/config/examples/Artillery/Sidewinder X1/V1/Configuration.h
index 59af83d3df6..33589c55ea3 100644
--- a/config/examples/Artillery/Sidewinder X1/V1/Configuration.h	
+++ b/config/examples/Artillery/Sidewinder X1/V1/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Artillery/Sidewinder X1/V1/Configuration_adv.h b/config/examples/Artillery/Sidewinder X1/V1/Configuration_adv.h
index b88eea21c0a..0e1725f3333 100644
--- a/config/examples/Artillery/Sidewinder X1/V1/Configuration_adv.h	
+++ b/config/examples/Artillery/Sidewinder X1/V1/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Artillery/Sidewinder X2/Configuration.h b/config/examples/Artillery/Sidewinder X2/Configuration.h
index 96eb568dc74..051c57bdba1 100644
--- a/config/examples/Artillery/Sidewinder X2/Configuration.h	
+++ b/config/examples/Artillery/Sidewinder X2/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Artillery/Sidewinder X2/Configuration_adv.h b/config/examples/Artillery/Sidewinder X2/Configuration_adv.h
index ca9ed7dbe5e..7237ab09946 100644
--- a/config/examples/Artillery/Sidewinder X2/Configuration_adv.h	
+++ b/config/examples/Artillery/Sidewinder X2/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Azteeg/X5GT/Configuration.h b/config/examples/Azteeg/X5GT/Configuration.h
index d83fb51f02f..fbcdced6556 100644
--- a/config/examples/Azteeg/X5GT/Configuration.h
+++ b/config/examples/Azteeg/X5GT/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Azteeg/X5GT/Configuration_adv.h b/config/examples/Azteeg/X5GT/Configuration_adv.h
index df3e109acdc..e8150eacc8f 100644
--- a/config/examples/Azteeg/X5GT/Configuration_adv.h
+++ b/config/examples/Azteeg/X5GT/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/BIBO/TouchX/cyclops/Configuration.h b/config/examples/BIBO/TouchX/cyclops/Configuration.h
index 7a151cda4fd..8875cd623aa 100644
--- a/config/examples/BIBO/TouchX/cyclops/Configuration.h
+++ b/config/examples/BIBO/TouchX/cyclops/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/BIBO/TouchX/cyclops/Configuration_adv.h b/config/examples/BIBO/TouchX/cyclops/Configuration_adv.h
index f0059f44b7b..bf12833a6ab 100644
--- a/config/examples/BIBO/TouchX/cyclops/Configuration_adv.h
+++ b/config/examples/BIBO/TouchX/cyclops/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 45        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 2     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        45 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     2 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/BIBO/TouchX/default - BLTouch/Configuration.h b/config/examples/BIBO/TouchX/default - BLTouch/Configuration.h
index 18212557117..0dc1f48564d 100644
--- a/config/examples/BIBO/TouchX/default - BLTouch/Configuration.h	
+++ b/config/examples/BIBO/TouchX/default - BLTouch/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES 10 // (mm) Z Clearance between probe points
@@ -2437,7 +2440,7 @@
 
 #define PREHEAT_2_LABEL       "ABS"
 #define PREHEAT_2_TEMP_HOTEND 240
-#define PREHEAT_2_TEMP_BED    80
+#define PREHEAT_2_TEMP_BED     80
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
 /**
diff --git a/config/examples/BIBO/TouchX/default - BLTouch/Configuration_adv.h b/config/examples/BIBO/TouchX/default - BLTouch/Configuration_adv.h
index 13464905fa2..27f78f8eb38 100644
--- a/config/examples/BIBO/TouchX/default - BLTouch/Configuration_adv.h	
+++ b/config/examples/BIBO/TouchX/default - BLTouch/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 60        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 2     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        60 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     2 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/BIBO/TouchX/default/Configuration.h b/config/examples/BIBO/TouchX/default/Configuration.h
index 71a6fdfc508..7daf53b1081 100644
--- a/config/examples/BIBO/TouchX/default/Configuration.h
+++ b/config/examples/BIBO/TouchX/default/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES 10 // (mm) Z Clearance between probe points
@@ -2436,7 +2439,7 @@
 
 #define PREHEAT_2_LABEL       "ABS"
 #define PREHEAT_2_TEMP_HOTEND 240
-#define PREHEAT_2_TEMP_BED    80
+#define PREHEAT_2_TEMP_BED     80
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
 /**
diff --git a/config/examples/BIBO/TouchX/default/Configuration_adv.h b/config/examples/BIBO/TouchX/default/Configuration_adv.h
index 2329e362785..fda2a8f4bf5 100644
--- a/config/examples/BIBO/TouchX/default/Configuration_adv.h
+++ b/config/examples/BIBO/TouchX/default/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 60        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 2     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        60 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     2 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2562,7 +2581,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2576,7 +2595,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2710,7 +2729,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4409,44 +4428,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4456,11 +4520,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4471,6 +4550,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4493,7 +4634,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/BIQU/B1 SE Plus/Configuration.h b/config/examples/BIQU/B1 SE Plus/Configuration.h
index 192cb4ee547..a3d4ffc2932 100644
--- a/config/examples/BIQU/B1 SE Plus/Configuration.h	
+++ b/config/examples/BIQU/B1 SE Plus/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1475,7 +1476,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1645,6 +1647,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1682,8 +1685,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    2 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  2 // (mm) Z Clearance between probe points
@@ -1905,7 +1908,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/BIQU/B1 SE Plus/Configuration_adv.h b/config/examples/BIQU/B1 SE Plus/Configuration_adv.h
index 424d4a99306..5a73b3f759c 100644
--- a/config/examples/BIQU/B1 SE Plus/Configuration_adv.h	
+++ b/config/examples/BIQU/B1 SE Plus/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/BIQU/B1 SE/Configuration.h b/config/examples/BIQU/B1 SE/Configuration.h
index 6717870cf85..b69ddc1c8ee 100644
--- a/config/examples/BIQU/B1 SE/Configuration.h	
+++ b/config/examples/BIQU/B1 SE/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1475,7 +1476,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1645,6 +1647,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1682,8 +1685,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    2 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  2 // (mm) Z Clearance between probe points
@@ -1905,7 +1908,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/BIQU/B1 SE/Configuration_adv.h b/config/examples/BIQU/B1 SE/Configuration_adv.h
index eb6301eea22..26243da3b53 100644
--- a/config/examples/BIQU/B1 SE/Configuration_adv.h	
+++ b/config/examples/BIQU/B1 SE/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/BIQU/B1/Configuration.h b/config/examples/BIQU/B1/Configuration.h
index afce16a91df..531873f9213 100644
--- a/config/examples/BIQU/B1/Configuration.h
+++ b/config/examples/BIQU/B1/Configuration.h
@@ -115,7 +115,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -394,14 +394,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1486,7 +1487,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1656,6 +1658,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1695,8 +1698,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1918,7 +1921,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/BIQU/B1/Configuration_adv.h b/config/examples/BIQU/B1/Configuration_adv.h
index e55821111b7..2c6d4773a83 100644
--- a/config/examples/BIQU/B1/Configuration_adv.h
+++ b/config/examples/BIQU/B1/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2567,7 +2586,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2581,7 +2600,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2715,7 +2734,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4415,44 +4434,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4462,11 +4526,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4477,6 +4556,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4499,7 +4640,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/BIQU/BX/Configuration.h b/config/examples/BIQU/BX/Configuration.h
index 4dd4ae599b8..58c19abcfe7 100644
--- a/config/examples/BIQU/BX/Configuration.h
+++ b/config/examples/BIQU/BX/Configuration.h
@@ -112,7 +112,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 4 // WiFi
@@ -391,14 +391,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1485,7 +1486,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1655,6 +1657,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1692,8 +1695,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    5 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  2 // (mm) Z Clearance between probe points
@@ -1915,7 +1918,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/BIQU/BX/Configuration_adv.h b/config/examples/BIQU/BX/Configuration_adv.h
index 3eda5562b9c..d890d1f0145 100644
--- a/config/examples/BIQU/BX/Configuration_adv.h
+++ b/config/examples/BIQU/BX/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 50        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 5     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        50 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     5 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -926,12 +926,12 @@
  * the position of the toolhead relative to the workspace.
  */
 
-#define SENSORLESS_BACKOFF_MM  { 3, 3, 0 }     // (linear=mm, rotational=°) Backoff from endstops before sensorless homing
+#define SENSORLESS_BACKOFF_MM  { 3, 3, 0 }    // (linear=mm, rotational=°) Backoff from endstops before sensorless homing
 
 #define HOMING_BUMP_MM      { 0, 0, 2 }       // (linear=mm, rotational=°) Backoff from endstops after first bump
 #define HOMING_BUMP_DIVISOR { 2, 2, 4 }       // Re-Bump Speed Divisor (Divides the Homing Feedrate)
 
-#define HOMING_BACKOFF_POST_MM { 5, 5, 2 }  // (linear=mm, rotational=°) Backoff from endstops after homing
+#define HOMING_BACKOFF_POST_MM { 5, 5, 2 }    // (linear=mm, rotational=°) Backoff from endstops after homing
 //#define XY_COUNTERPART_BACKOFF_MM 0         // (mm) Backoff X after homing Y, and vice-versa
 
 //#define QUICK_HOME                          // If G28 contains XY do a diagonal move first
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1106,19 +1108,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1128,8 +1133,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1182,7 +1187,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -2978,8 +2997,8 @@
   #define INTERPOLATE      true
 
   #if AXIS_IS_TMC_CONFIG(X)
-    #define X_CURRENT       1050       // (mA) RMS current. Multiply by 1.414 for peak current.
-    #define X_CURRENT_HOME   350       // (mA) RMS current for homing. (Typically lower than *_CURRENT.)
+    #define X_CURRENT      1050        // (mA) RMS current. Multiply by 1.414 for peak current.
+    #define X_CURRENT_HOME  350        // (mA) RMS current for homing. (Typically lower than *_CURRENT.)
     #define X_MICROSTEPS     16        // 0..256
     #define X_RSENSE          0.15
     #define X_CHAIN_POS      -1        // -1..0: Not chained. 1: MCU MOSI connected. 2: Next in chain, ...
@@ -2998,7 +3017,7 @@
   #endif
 
   #if AXIS_IS_TMC_CONFIG(Y)
-    #define Y_CURRENT       1150
+    #define Y_CURRENT      1150
     #define Y_CURRENT_HOME  350
     #define Y_MICROSTEPS     16
     #define Y_RSENSE          0.15
@@ -3018,7 +3037,7 @@
   #endif
 
   #if AXIS_IS_TMC_CONFIG(Z)
-    #define Z_CURRENT       1050
+    #define Z_CURRENT      1050
     #define Z_CURRENT_HOME  Z_CURRENT
     #define Z_MICROSTEPS     16
     #define Z_RSENSE          0.15
@@ -3031,7 +3050,7 @@
     #define Z2_CURRENT      Z_CURRENT
     #define Z2_CURRENT_HOME Z_CURRENT_HOME
     #define Z2_MICROSTEPS   Z_MICROSTEPS
-    #define Z2_RSENSE         0.15
+    #define Z2_RSENSE       Z_RSENSE
     #define Z2_CHAIN_POS     -1
     //#define Z2_INTERPOLATE true
     //#define Z2_HOLD_MULTIPLIER 0.5
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/BIQU/Hurakan/Configuration.h b/config/examples/BIQU/Hurakan/Configuration.h
index ef3a3ab152b..9f1cffc8f69 100644
--- a/config/examples/BIQU/Hurakan/Configuration.h
+++ b/config/examples/BIQU/Hurakan/Configuration.h
@@ -111,7 +111,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -390,14 +390,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1480,7 +1481,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 #define BIQU_MICROPROBE_V2    // Triggers LOW
@@ -1650,6 +1652,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1687,8 +1690,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1910,7 +1913,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/BIQU/Hurakan/Configuration_adv.h b/config/examples/BIQU/Hurakan/Configuration_adv.h
index bed7ada67fd..46f188b0be4 100644
--- a/config/examples/BIQU/Hurakan/Configuration_adv.h
+++ b/config/examples/BIQU/Hurakan/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1106,19 +1108,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1128,8 +1133,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1182,7 +1187,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/BIQU/Thunder Standard/Configuration.h b/config/examples/BIQU/Thunder Standard/Configuration.h
index 3230f2874dc..fbf1773652c 100644
--- a/config/examples/BIQU/Thunder Standard/Configuration.h	
+++ b/config/examples/BIQU/Thunder Standard/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/BIQU/Thunder Standard/Configuration_adv.h b/config/examples/BIQU/Thunder Standard/Configuration_adv.h
index dbbd00f73d2..e42e89e3aae 100644
--- a/config/examples/BIQU/Thunder Standard/Configuration_adv.h	
+++ b/config/examples/BIQU/Thunder Standard/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/BQ/Hephestos/Configuration.h b/config/examples/BQ/Hephestos/Configuration.h
index eada2ed6293..c8623211860 100644
--- a/config/examples/BQ/Hephestos/Configuration.h
+++ b/config/examples/BQ/Hephestos/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/BQ/Hephestos/Configuration_adv.h b/config/examples/BQ/Hephestos/Configuration_adv.h
index 65656bc250d..e25f731e06b 100644
--- a/config/examples/BQ/Hephestos/Configuration_adv.h
+++ b/config/examples/BQ/Hephestos/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/BQ/Hephestos_2/Configuration.h b/config/examples/BQ/Hephestos_2/Configuration.h
index 87bbdbe9b4d..62080a2e3ee 100644
--- a/config/examples/BQ/Hephestos_2/Configuration.h
+++ b/config/examples/BQ/Hephestos_2/Configuration.h
@@ -116,7 +116,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -395,14 +395,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1491,7 +1492,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1661,6 +1663,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1698,8 +1701,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    0 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  2 // (mm) Z Clearance between probe points
diff --git a/config/examples/BQ/Hephestos_2/Configuration_adv.h b/config/examples/BQ/Hephestos_2/Configuration_adv.h
index 88996694a62..5075f637dcb 100644
--- a/config/examples/BQ/Hephestos_2/Configuration_adv.h
+++ b/config/examples/BQ/Hephestos_2/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1502,8 +1507,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1520,6 +1534,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1534,8 +1552,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1566,6 +1582,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2573,7 +2592,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2587,7 +2606,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2721,7 +2740,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4420,44 +4439,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4467,11 +4531,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4482,6 +4561,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4504,7 +4645,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/BQ/WITBOX/Configuration.h b/config/examples/BQ/WITBOX/Configuration.h
index a2b588e431c..43d8d7e25b0 100644
--- a/config/examples/BQ/WITBOX/Configuration.h
+++ b/config/examples/BQ/WITBOX/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/BQ/WITBOX/Configuration_adv.h b/config/examples/BQ/WITBOX/Configuration_adv.h
index 65656bc250d..e25f731e06b 100644
--- a/config/examples/BQ/WITBOX/Configuration_adv.h
+++ b/config/examples/BQ/WITBOX/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/CNC/miniRambo/Configuration.h b/config/examples/CNC/miniRambo/Configuration.h
index a239e30336c..b789b1f2205 100644
--- a/config/examples/CNC/miniRambo/Configuration.h
+++ b/config/examples/CNC/miniRambo/Configuration.h
@@ -109,7 +109,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -388,14 +388,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1476,7 +1477,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1646,6 +1648,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1683,8 +1686,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1807,7 +1810,7 @@
  */
 //#define Z_IDLE_HEIGHT Z_HOME_POS
 
-//#define Z_CLEARANCE_FOR_HOMING  4   // (mm) Minimal Z height before homing (G28) for Z clearance above the bed, clamps, ...
+#define Z_CLEARANCE_FOR_HOMING  0     // (mm) Minimal Z height before homing (G28) for Z clearance above the bed, clamps, ...
                                       // You'll need this much clearance above Z_MAX_POS to avoid grinding.
 
 //#define Z_AFTER_HOMING         10   // (mm) Height to move to after homing (if Z was homed)
diff --git a/config/examples/CNC/miniRambo/Configuration_adv.h b/config/examples/CNC/miniRambo/Configuration_adv.h
index 7c25b1c8edb..a0583156188 100644
--- a/config/examples/CNC/miniRambo/Configuration_adv.h
+++ b/config/examples/CNC/miniRambo/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4415,44 +4434,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4462,11 +4526,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4477,6 +4556,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4499,7 +4640,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/CTC/A13/Configuration.h b/config/examples/CTC/A13/Configuration.h
index b69d0891ae4..0f153a85874 100644
--- a/config/examples/CTC/A13/Configuration.h
+++ b/config/examples/CTC/A13/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/CTC/A13/Configuration_adv.h b/config/examples/CTC/A13/Configuration_adv.h
index e223450bdc1..a6eb3d4bc26 100644
--- a/config/examples/CTC/A13/Configuration_adv.h
+++ b/config/examples/CTC/A13/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/CTC/Bizer/Configuration.h b/config/examples/CTC/Bizer/Configuration.h
index b1fda2c8d0b..0d5eb634e09 100644
--- a/config/examples/CTC/Bizer/Configuration.h
+++ b/config/examples/CTC/Bizer/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/CTC/Bizer/Configuration_adv.h b/config/examples/CTC/Bizer/Configuration_adv.h
index e89d9649ac6..686f219d1e3 100644
--- a/config/examples/CTC/Bizer/Configuration_adv.h
+++ b/config/examples/CTC/Bizer/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/CTC/i3 2560 Rev A/no probe/Configuration.h b/config/examples/CTC/i3 2560 Rev A/no probe/Configuration.h
index 586d7caa0de..81bad6d2e4b 100644
--- a/config/examples/CTC/i3 2560 Rev A/no probe/Configuration.h	
+++ b/config/examples/CTC/i3 2560 Rev A/no probe/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/CTC/i3 2560 Rev A/no probe/Configuration_adv.h b/config/examples/CTC/i3 2560 Rev A/no probe/Configuration_adv.h
index df3e109acdc..e8150eacc8f 100644
--- a/config/examples/CTC/i3 2560 Rev A/no probe/Configuration_adv.h	
+++ b/config/examples/CTC/i3 2560 Rev A/no probe/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Cartesio/Configuration.h b/config/examples/Cartesio/Configuration.h
index 464bec4ca48..052ef924b15 100644
--- a/config/examples/Cartesio/Configuration.h
+++ b/config/examples/Cartesio/Configuration.h
@@ -109,7 +109,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -388,14 +388,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1493,7 +1494,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1663,6 +1665,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1700,8 +1703,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Cartesio/Configuration_adv.h b/config/examples/Cartesio/Configuration_adv.h
index c3c66719d4b..7cae2004aba 100644
--- a/config/examples/Cartesio/Configuration_adv.h
+++ b/config/examples/Cartesio/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Copymaster3D/300/Configuration.h b/config/examples/Copymaster3D/300/Configuration.h
index 1c38bb38db2..037f449ea95 100644
--- a/config/examples/Copymaster3D/300/Configuration.h
+++ b/config/examples/Copymaster3D/300/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Copymaster3D/300/Configuration_adv.h b/config/examples/Copymaster3D/300/Configuration_adv.h
index df3e109acdc..e8150eacc8f 100644
--- a/config/examples/Copymaster3D/300/Configuration_adv.h
+++ b/config/examples/Copymaster3D/300/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Copymaster3D/400/Configuration.h b/config/examples/Copymaster3D/400/Configuration.h
index 64c3b187965..c674de7f1a8 100644
--- a/config/examples/Copymaster3D/400/Configuration.h
+++ b/config/examples/Copymaster3D/400/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Copymaster3D/400/Configuration_adv.h b/config/examples/Copymaster3D/400/Configuration_adv.h
index df3e109acdc..e8150eacc8f 100644
--- a/config/examples/Copymaster3D/400/Configuration_adv.h
+++ b/config/examples/Copymaster3D/400/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Copymaster3D/500/Configuration.h b/config/examples/Copymaster3D/500/Configuration.h
index 054528c2a2d..fc1d757f051 100644
--- a/config/examples/Copymaster3D/500/Configuration.h
+++ b/config/examples/Copymaster3D/500/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Copymaster3D/500/Configuration_adv.h b/config/examples/Copymaster3D/500/Configuration_adv.h
index df3e109acdc..e8150eacc8f 100644
--- a/config/examples/Copymaster3D/500/Configuration_adv.h
+++ b/config/examples/Copymaster3D/500/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-10 Max/Configuration.h b/config/examples/Creality/CR-10 Max/Configuration.h
index 8daa5235a4a..a8b195324d8 100644
--- a/config/examples/Creality/CR-10 Max/Configuration.h	
+++ b/config/examples/Creality/CR-10 Max/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/CR-10 Max/Configuration_adv.h b/config/examples/Creality/CR-10 Max/Configuration_adv.h
index 9c2aba5c140..cfa3515f89c 100644
--- a/config/examples/Creality/CR-10 Max/Configuration_adv.h	
+++ b/config/examples/Creality/CR-10 Max/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-10 Mini/BigTreeTech SKR Mini E3 2.0/Configuration.h b/config/examples/Creality/CR-10 Mini/BigTreeTech SKR Mini E3 2.0/Configuration.h
index 53af73d5bc5..212e4f44f02 100644
--- a/config/examples/Creality/CR-10 Mini/BigTreeTech SKR Mini E3 2.0/Configuration.h	
+++ b/config/examples/Creality/CR-10 Mini/BigTreeTech SKR Mini E3 2.0/Configuration.h	
@@ -117,7 +117,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -396,14 +396,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1485,7 +1486,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1655,6 +1657,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1692,8 +1695,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/CR-10 Mini/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h b/config/examples/Creality/CR-10 Mini/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h
index 2ba526745af..97a38edaaa5 100644
--- a/config/examples/Creality/CR-10 Mini/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h	
+++ b/config/examples/Creality/CR-10 Mini/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-10 Mini/BigTreeTech SKR Mini E3 3.0/Configuration.h b/config/examples/Creality/CR-10 Mini/BigTreeTech SKR Mini E3 3.0/Configuration.h
index 474e15c7141..1ed58501949 100644
--- a/config/examples/Creality/CR-10 Mini/BigTreeTech SKR Mini E3 3.0/Configuration.h	
+++ b/config/examples/Creality/CR-10 Mini/BigTreeTech SKR Mini E3 3.0/Configuration.h	
@@ -117,7 +117,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -396,14 +396,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1485,7 +1486,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1655,6 +1657,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1692,8 +1695,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/CR-10 Mini/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h b/config/examples/Creality/CR-10 Mini/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h
index cab37cd105a..b6dfc20b16e 100644
--- a/config/examples/Creality/CR-10 Mini/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h	
+++ b/config/examples/Creality/CR-10 Mini/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-10 Mini/CrealityV1/Configuration.h b/config/examples/Creality/CR-10 Mini/CrealityV1/Configuration.h
index 9b66375def7..9008e3cbcb7 100644
--- a/config/examples/Creality/CR-10 Mini/CrealityV1/Configuration.h	
+++ b/config/examples/Creality/CR-10 Mini/CrealityV1/Configuration.h	
@@ -117,7 +117,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -396,14 +396,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1486,7 +1487,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1656,6 +1658,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1693,8 +1696,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/CR-10 Mini/CrealityV1/Configuration_adv.h b/config/examples/Creality/CR-10 Mini/CrealityV1/Configuration_adv.h
index d19e3baa583..a59464c4b47 100644
--- a/config/examples/Creality/CR-10 Mini/CrealityV1/Configuration_adv.h	
+++ b/config/examples/Creality/CR-10 Mini/CrealityV1/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-10 Mini/MEEB-3DP/Configuration.h b/config/examples/Creality/CR-10 Mini/MEEB-3DP/Configuration.h
index 3e86acb731c..6e704c38c6d 100644
--- a/config/examples/Creality/CR-10 Mini/MEEB-3DP/Configuration.h	
+++ b/config/examples/Creality/CR-10 Mini/MEEB-3DP/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1907,7 +1910,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Creality/CR-10 Mini/MEEB-3DP/Configuration_adv.h b/config/examples/Creality/CR-10 Mini/MEEB-3DP/Configuration_adv.h
index c0d5995b000..d8434384b5d 100644
--- a/config/examples/Creality/CR-10 Mini/MEEB-3DP/Configuration_adv.h	
+++ b/config/examples/Creality/CR-10 Mini/MEEB-3DP/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1081,9 +1081,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1104,19 +1106,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1126,8 +1131,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1180,7 +1185,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1493,8 +1498,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1511,6 +1525,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1525,8 +1543,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1557,6 +1573,9 @@
   // BACK menu items keep the highlight at the top
   #define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2278,7 +2297,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z 10       // (steps or mm) Steps or millimeter distance for each XY babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2288,7 +2307,7 @@
     #endif
   #endif
 
-  #define BABYSTEP_DISPLAY_TOTAL          // Display total babysteps since last G28
+  #define BABYSTEP_DISPLAY_TOTAL            // Display total babysteps since last G28
 
   //#define BABYSTEP_ZPROBE_OFFSET          // Combine M851 Z and Babystepping
   //#define BABYSTEP_GLOBAL_Z               // Combine M424 Z and Babystepping
@@ -2564,7 +2583,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2578,7 +2597,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2712,7 +2731,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4407,44 +4426,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4454,11 +4518,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4469,6 +4548,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4491,7 +4632,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-10 S4/CrealityV1/Configuration.h b/config/examples/Creality/CR-10 S4/CrealityV1/Configuration.h
index 9bde0e82e7f..6e1219a256d 100644
--- a/config/examples/Creality/CR-10 S4/CrealityV1/Configuration.h	
+++ b/config/examples/Creality/CR-10 S4/CrealityV1/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/CR-10 S4/CrealityV1/Configuration_adv.h b/config/examples/Creality/CR-10 S4/CrealityV1/Configuration_adv.h
index 07326a3c517..b519e5a9401 100644
--- a/config/examples/Creality/CR-10 S4/CrealityV1/Configuration_adv.h	
+++ b/config/examples/Creality/CR-10 S4/CrealityV1/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-10 S5/BigTreeTech SKR Mini E3 1.2 with TFT35 E3 V3.0/Configuration.h b/config/examples/Creality/CR-10 S5/BigTreeTech SKR Mini E3 1.2 with TFT35 E3 V3.0/Configuration.h
index 471898712d4..bdea0d456fe 100644
--- a/config/examples/Creality/CR-10 S5/BigTreeTech SKR Mini E3 1.2 with TFT35 E3 V3.0/Configuration.h	
+++ b/config/examples/Creality/CR-10 S5/BigTreeTech SKR Mini E3 1.2 with TFT35 E3 V3.0/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/CR-10 S5/BigTreeTech SKR Mini E3 1.2 with TFT35 E3 V3.0/Configuration_adv.h b/config/examples/Creality/CR-10 S5/BigTreeTech SKR Mini E3 1.2 with TFT35 E3 V3.0/Configuration_adv.h
index a2250842f4e..dbf8128d1bf 100644
--- a/config/examples/Creality/CR-10 S5/BigTreeTech SKR Mini E3 1.2 with TFT35 E3 V3.0/Configuration_adv.h	
+++ b/config/examples/Creality/CR-10 S5/BigTreeTech SKR Mini E3 1.2 with TFT35 E3 V3.0/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-10 S5/BigTreeTech SKR Mini E3 v3/Configuration.h b/config/examples/Creality/CR-10 S5/BigTreeTech SKR Mini E3 v3/Configuration.h
index 3435e03ac78..d5017d6ed2f 100644
--- a/config/examples/Creality/CR-10 S5/BigTreeTech SKR Mini E3 v3/Configuration.h	
+++ b/config/examples/Creality/CR-10 S5/BigTreeTech SKR Mini E3 v3/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/CR-10 S5/BigTreeTech SKR Mini E3 v3/Configuration_adv.h b/config/examples/Creality/CR-10 S5/BigTreeTech SKR Mini E3 v3/Configuration_adv.h
index 98dd73f2229..b3447fdd83f 100644
--- a/config/examples/Creality/CR-10 S5/BigTreeTech SKR Mini E3 v3/Configuration_adv.h	
+++ b/config/examples/Creality/CR-10 S5/BigTreeTech SKR Mini E3 v3/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 #define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,21 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
-   */
-  #define TRAMMING_SCREW_THREAD 40 // CR-10 S5 config
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
+  #define TRAMMING_SCREW_THREAD M4_CW // CR-10 S5 config
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1131,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1185,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   #define TURBO_BACK_MENU_ITEM // CR-10 S5 config
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2273,10 +2291,10 @@
 #if ENABLED(BABYSTEPPING)
   //#define EP_BABYSTEPPING                 // M293/M294 babystepping with EMERGENCY_PARSER support
   #define BABYSTEP_WITHOUT_HOMING
-  #define BABYSTEP_ALWAYS_AVAILABLE       // Allow babystepping at all times (not just during movement)
+  #define BABYSTEP_ALWAYS_AVAILABLE         // Allow babystepping at all times (not just during movement)
   //#define BABYSTEP_XY                     // Also enable X/Y Babystepping. Not supported on DELTA!
   //#define BABYSTEP_INVERT_Z               // Enable if Z babysteps should go the other way
-  #define BABYSTEP_MILLIMETER_UNITS       // Specify BABYSTEP_MULTIPLICATOR_(XY|Z) in mm instead of micro-steps
+  #define BABYSTEP_MILLIMETER_UNITS         // Specify BABYSTEP_MULTIPLICATOR_(XY|Z) in mm instead of micro-steps
   #define BABYSTEP_MULTIPLICATOR_Z  0.05    // (steps or mm) Steps or millimeter distance for each Z babystep // CR-10 S5 config
   #define BABYSTEP_MULTIPLICATOR_XY 0.05    // (steps or mm) Steps or millimeter distance for each XY babystep // CR-10 S5 config
 
@@ -2290,7 +2308,7 @@
     #endif
   #endif
 
-  #define BABYSTEP_DISPLAY_TOTAL          // Display total babysteps since last G28
+  #define BABYSTEP_DISPLAY_TOTAL            // Display total babysteps since last G28
 
   #define BABYSTEP_ZPROBE_OFFSET            // Combine M851 Z and Babystepping
   //#define BABYSTEP_GLOBAL_Z               // Combine M424 Z and Babystepping
@@ -2566,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4414,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4461,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4476,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4498,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-10 S5/CrealityV1/Configuration.h b/config/examples/Creality/CR-10 S5/CrealityV1/Configuration.h
index 6cbfe056582..f4af53eb6a0 100644
--- a/config/examples/Creality/CR-10 S5/CrealityV1/Configuration.h	
+++ b/config/examples/Creality/CR-10 S5/CrealityV1/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/CR-10 S5/CrealityV1/Configuration_adv.h b/config/examples/Creality/CR-10 S5/CrealityV1/Configuration_adv.h
index 07326a3c517..b519e5a9401 100644
--- a/config/examples/Creality/CR-10 S5/CrealityV1/Configuration_adv.h	
+++ b/config/examples/Creality/CR-10 S5/CrealityV1/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-10 S5/CrealityV2.2 - BLTouch/Configuration.h b/config/examples/Creality/CR-10 S5/CrealityV2.2 - BLTouch/Configuration.h
index a0fdafa357b..3aed40951cb 100644
--- a/config/examples/Creality/CR-10 S5/CrealityV2.2 - BLTouch/Configuration.h	
+++ b/config/examples/Creality/CR-10 S5/CrealityV2.2 - BLTouch/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1479,7 +1480,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1649,6 +1651,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1686,8 +1689,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/CR-10 S5/CrealityV2.2 - BLTouch/Configuration_adv.h b/config/examples/Creality/CR-10 S5/CrealityV2.2 - BLTouch/Configuration_adv.h
index abe666162b8..f044a075c6c 100644
--- a/config/examples/Creality/CR-10 S5/CrealityV2.2 - BLTouch/Configuration_adv.h	
+++ b/config/examples/Creality/CR-10 S5/CrealityV2.2 - BLTouch/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2289,7 +2308,7 @@
     #endif
   #endif
 
-  #define BABYSTEP_DISPLAY_TOTAL          // Display total babysteps since last G28
+  #define BABYSTEP_DISPLAY_TOTAL            // Display total babysteps since last G28
 
   #define BABYSTEP_ZPROBE_OFFSET            // Combine M851 Z and Babystepping
   //#define BABYSTEP_GLOBAL_Z               // Combine M424 Z and Babystepping
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-10 S5/CrealityV427 - BLTouch/Configuration.h b/config/examples/Creality/CR-10 S5/CrealityV427 - BLTouch/Configuration.h
index 741b5b93488..a66aacd3f58 100644
--- a/config/examples/Creality/CR-10 S5/CrealityV427 - BLTouch/Configuration.h	
+++ b/config/examples/Creality/CR-10 S5/CrealityV427 - BLTouch/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1479,7 +1480,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1649,6 +1651,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1686,8 +1689,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/CR-10 S5/CrealityV427 - BLTouch/Configuration_adv.h b/config/examples/Creality/CR-10 S5/CrealityV427 - BLTouch/Configuration_adv.h
index c6345351426..edd87743a34 100644
--- a/config/examples/Creality/CR-10 S5/CrealityV427 - BLTouch/Configuration_adv.h	
+++ b/config/examples/Creality/CR-10 S5/CrealityV427 - BLTouch/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2289,7 +2308,7 @@
     #endif
   #endif
 
-  #define BABYSTEP_DISPLAY_TOTAL          // Display total babysteps since last G28
+  #define BABYSTEP_DISPLAY_TOTAL            // Display total babysteps since last G28
 
   #define BABYSTEP_ZPROBE_OFFSET            // Combine M851 Z and Babystepping
   //#define BABYSTEP_GLOBAL_Z               // Combine M424 Z and Babystepping
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2715,7 +2734,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4415,44 +4434,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4462,11 +4526,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4477,6 +4556,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4499,7 +4640,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-10 V2/Configuration.h b/config/examples/Creality/CR-10 V2/Configuration.h
index 579e1476551..a8ce8491d64 100644
--- a/config/examples/Creality/CR-10 V2/Configuration.h	
+++ b/config/examples/Creality/CR-10 V2/Configuration.h	
@@ -115,7 +115,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -394,14 +394,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1495,7 +1496,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1665,6 +1667,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1702,8 +1705,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1927,7 +1930,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
@@ -2466,7 +2469,7 @@
 
 #define PREHEAT_2_LABEL       "PETG"
 #define PREHEAT_2_TEMP_HOTEND 230
-#define PREHEAT_2_TEMP_BED    80
+#define PREHEAT_2_TEMP_BED     80
 #define PREHEAT_2_TEMP_CHAMBER 35
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
diff --git a/config/examples/Creality/CR-10 V2/Configuration_adv.h b/config/examples/Creality/CR-10 V2/Configuration_adv.h
index 3f3a482d931..c1a9f9716bf 100644
--- a/config/examples/Creality/CR-10 V2/Configuration_adv.h	
+++ b/config/examples/Creality/CR-10 V2/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 60        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 10     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        60 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS    10 // (°C)
 
   #define ADAPTIVE_FAN_SLOWING                // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2570,7 +2589,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2584,7 +2603,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2718,7 +2737,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4415,44 +4434,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4462,11 +4526,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4477,6 +4556,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4499,7 +4640,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-10 V3/Configuration.h b/config/examples/Creality/CR-10 V3/Configuration.h
index 08a83fe69db..5cc43d7fb4a 100644
--- a/config/examples/Creality/CR-10 V3/Configuration.h	
+++ b/config/examples/Creality/CR-10 V3/Configuration.h	
@@ -115,7 +115,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -394,14 +394,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1496,7 +1497,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1667,6 +1669,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1704,8 +1707,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  3 // (mm) Z Clearance between probe points (Stock: 5)
@@ -1930,7 +1933,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
@@ -2471,7 +2474,7 @@
 
 #define PREHEAT_2_LABEL       "PETG"
 #define PREHEAT_2_TEMP_HOTEND 230
-#define PREHEAT_2_TEMP_BED    80
+#define PREHEAT_2_TEMP_BED     80
 #define PREHEAT_2_TEMP_CHAMBER 35
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
diff --git a/config/examples/Creality/CR-10 V3/Configuration_adv.h b/config/examples/Creality/CR-10 V3/Configuration_adv.h
index fc413e651f6..c392a8d482e 100644
--- a/config/examples/Creality/CR-10 V3/Configuration_adv.h	
+++ b/config/examples/Creality/CR-10 V3/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 60        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 10     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        60 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS    10 // (°C)
 
   #define ADAPTIVE_FAN_SLOWING                // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 #if ENABLED(CR10V3_BLTOUCH)
   #define ASSISTED_TRAMMING
 #endif
@@ -1107,19 +1109,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1129,8 +1134,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1183,7 +1188,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1496,8 +1501,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1514,6 +1528,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1528,8 +1546,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1560,6 +1576,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2572,7 +2591,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2586,7 +2605,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2720,7 +2739,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4417,44 +4436,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4464,11 +4528,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4479,6 +4558,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4501,7 +4642,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-10/BigTreeTech SKR Mini E3 2.0/Configuration.h b/config/examples/Creality/CR-10/BigTreeTech SKR Mini E3 2.0/Configuration.h
index 25a0955208b..69de955cf52 100644
--- a/config/examples/Creality/CR-10/BigTreeTech SKR Mini E3 2.0/Configuration.h	
+++ b/config/examples/Creality/CR-10/BigTreeTech SKR Mini E3 2.0/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1476,7 +1477,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1646,6 +1648,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1683,8 +1686,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/CR-10/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h b/config/examples/Creality/CR-10/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h
index 1fef31abf82..9503a481d1c 100644
--- a/config/examples/Creality/CR-10/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h	
+++ b/config/examples/Creality/CR-10/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-10/BigTreeTech SKR Mini E3 3.0/Configuration.h b/config/examples/Creality/CR-10/BigTreeTech SKR Mini E3 3.0/Configuration.h
index 9ca36e14b6c..496e729c15b 100644
--- a/config/examples/Creality/CR-10/BigTreeTech SKR Mini E3 3.0/Configuration.h	
+++ b/config/examples/Creality/CR-10/BigTreeTech SKR Mini E3 3.0/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1476,7 +1477,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1646,6 +1648,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1683,8 +1686,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/CR-10/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h b/config/examples/Creality/CR-10/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h
index 4c298efe875..b2aaf83fdf0 100644
--- a/config/examples/Creality/CR-10/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h	
+++ b/config/examples/Creality/CR-10/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-10/CrealityV1/Configuration.h b/config/examples/Creality/CR-10/CrealityV1/Configuration.h
index 7b1dcd59fe3..8de1af8ae87 100644
--- a/config/examples/Creality/CR-10/CrealityV1/Configuration.h
+++ b/config/examples/Creality/CR-10/CrealityV1/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES 10 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/CR-10/CrealityV1/Configuration_adv.h b/config/examples/Creality/CR-10/CrealityV1/Configuration_adv.h
index c38abb93e9d..6c28b542a26 100644
--- a/config/examples/Creality/CR-10/CrealityV1/Configuration_adv.h
+++ b/config/examples/Creality/CR-10/CrealityV1/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4415,44 +4434,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4462,11 +4526,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4477,6 +4556,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4499,7 +4640,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-10S Pro/Configuration.h b/config/examples/Creality/CR-10S Pro/Configuration.h
index dd2186990b2..f1094683234 100644
--- a/config/examples/Creality/CR-10S Pro/Configuration.h	
+++ b/config/examples/Creality/CR-10S Pro/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/CR-10S Pro/Configuration_adv.h b/config/examples/Creality/CR-10S Pro/Configuration_adv.h
index d640d587efe..fce5eea4240 100644
--- a/config/examples/Creality/CR-10S Pro/Configuration_adv.h	
+++ b/config/examples/Creality/CR-10S Pro/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   #define ADAPTIVE_FAN_SLOWING                // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-10S/BigTreeTech SKR 1.4 Turbo TMC2209/Configuration.h b/config/examples/Creality/CR-10S/BigTreeTech SKR 1.4 Turbo TMC2209/Configuration.h
index 51d2209e8d4..60c967740ea 100644
--- a/config/examples/Creality/CR-10S/BigTreeTech SKR 1.4 Turbo TMC2209/Configuration.h	
+++ b/config/examples/Creality/CR-10S/BigTreeTech SKR 1.4 Turbo TMC2209/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/CR-10S/BigTreeTech SKR 1.4 Turbo TMC2209/Configuration_adv.h b/config/examples/Creality/CR-10S/BigTreeTech SKR 1.4 Turbo TMC2209/Configuration_adv.h
index 60caf273d38..d4b906e4dca 100644
--- a/config/examples/Creality/CR-10S/BigTreeTech SKR 1.4 Turbo TMC2209/Configuration_adv.h	
+++ b/config/examples/Creality/CR-10S/BigTreeTech SKR 1.4 Turbo TMC2209/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-10S/BigTreeTech SKR 2.0 TMC2209/Configuration.h b/config/examples/Creality/CR-10S/BigTreeTech SKR 2.0 TMC2209/Configuration.h
index 739bcf1cb76..023369c1f45 100644
--- a/config/examples/Creality/CR-10S/BigTreeTech SKR 2.0 TMC2209/Configuration.h	
+++ b/config/examples/Creality/CR-10S/BigTreeTech SKR 2.0 TMC2209/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/CR-10S/BigTreeTech SKR 2.0 TMC2209/Configuration_adv.h b/config/examples/Creality/CR-10S/BigTreeTech SKR 2.0 TMC2209/Configuration_adv.h
index ac48702bb0a..aec0a941b32 100644
--- a/config/examples/Creality/CR-10S/BigTreeTech SKR 2.0 TMC2209/Configuration_adv.h	
+++ b/config/examples/Creality/CR-10S/BigTreeTech SKR 2.0 TMC2209/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-10S/BigTreeTech SKR Mini E3 2.0/Configuration.h b/config/examples/Creality/CR-10S/BigTreeTech SKR Mini E3 2.0/Configuration.h
index 5e13d5d9162..38977145329 100644
--- a/config/examples/Creality/CR-10S/BigTreeTech SKR Mini E3 2.0/Configuration.h	
+++ b/config/examples/Creality/CR-10S/BigTreeTech SKR Mini E3 2.0/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/CR-10S/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h b/config/examples/Creality/CR-10S/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h
index 1fef31abf82..9503a481d1c 100644
--- a/config/examples/Creality/CR-10S/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h	
+++ b/config/examples/Creality/CR-10S/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-10S/BigTreeTech SKR Mini E3 3.0/Configuration.h b/config/examples/Creality/CR-10S/BigTreeTech SKR Mini E3 3.0/Configuration.h
index aaa72b4db16..e32c874f0ce 100644
--- a/config/examples/Creality/CR-10S/BigTreeTech SKR Mini E3 3.0/Configuration.h	
+++ b/config/examples/Creality/CR-10S/BigTreeTech SKR Mini E3 3.0/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/CR-10S/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h b/config/examples/Creality/CR-10S/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h
index c41487d1571..15f8416a651 100644
--- a/config/examples/Creality/CR-10S/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h	
+++ b/config/examples/Creality/CR-10S/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-10S/BigTreeTech SKR Pro v1.2/Configuration.h b/config/examples/Creality/CR-10S/BigTreeTech SKR Pro v1.2/Configuration.h
index a0fc9aba1ec..e92e0e44443 100644
--- a/config/examples/Creality/CR-10S/BigTreeTech SKR Pro v1.2/Configuration.h	
+++ b/config/examples/Creality/CR-10S/BigTreeTech SKR Pro v1.2/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -2437,7 +2440,7 @@
 
 #define PREHEAT_2_LABEL       "PETG"
 #define PREHEAT_2_TEMP_HOTEND 240
-#define PREHEAT_2_TEMP_BED    80
+#define PREHEAT_2_TEMP_BED     80
 #define PREHEAT_2_TEMP_CHAMBER 35
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
diff --git a/config/examples/Creality/CR-10S/BigTreeTech SKR Pro v1.2/Configuration_adv.h b/config/examples/Creality/CR-10S/BigTreeTech SKR Pro v1.2/Configuration_adv.h
index df46292b661..c9726c46a98 100644
--- a/config/examples/Creality/CR-10S/BigTreeTech SKR Pro v1.2/Configuration_adv.h	
+++ b/config/examples/Creality/CR-10S/BigTreeTech SKR Pro v1.2/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-10S/CrealityV1 - BLTouch/Configuration.h b/config/examples/Creality/CR-10S/CrealityV1 - BLTouch/Configuration.h
index 7e36c46a753..f0f6616ead1 100644
--- a/config/examples/Creality/CR-10S/CrealityV1 - BLTouch/Configuration.h	
+++ b/config/examples/Creality/CR-10S/CrealityV1 - BLTouch/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/CR-10S/CrealityV1 - BLTouch/Configuration_adv.h b/config/examples/Creality/CR-10S/CrealityV1 - BLTouch/Configuration_adv.h
index b6c71c28d4c..957efbed14b 100644
--- a/config/examples/Creality/CR-10S/CrealityV1 - BLTouch/Configuration_adv.h	
+++ b/config/examples/Creality/CR-10S/CrealityV1 - BLTouch/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-10S/CrealityV1/Configuration.h b/config/examples/Creality/CR-10S/CrealityV1/Configuration.h
index ad17a6daed7..f889480af74 100644
--- a/config/examples/Creality/CR-10S/CrealityV1/Configuration.h
+++ b/config/examples/Creality/CR-10S/CrealityV1/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -2438,7 +2441,7 @@
 
 #define PREHEAT_2_LABEL       "ABS"
 #define PREHEAT_2_TEMP_HOTEND 235 // ABS working temp between 210 and 250 C.
-#define PREHEAT_2_TEMP_BED    80
+#define PREHEAT_2_TEMP_BED     80
 #define PREHEAT_2_TEMP_CHAMBER 35
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
diff --git a/config/examples/Creality/CR-10S/CrealityV1/Configuration_adv.h b/config/examples/Creality/CR-10S/CrealityV1/Configuration_adv.h
index 0c90e70d16b..0abb1f2aa8b 100644
--- a/config/examples/Creality/CR-10S/CrealityV1/Configuration_adv.h
+++ b/config/examples/Creality/CR-10S/CrealityV1/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-20 Pro/Configuration.h b/config/examples/Creality/CR-20 Pro/Configuration.h
index 9aa770c8a60..2b42242b4fe 100644
--- a/config/examples/Creality/CR-20 Pro/Configuration.h	
+++ b/config/examples/Creality/CR-20 Pro/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1908,7 +1911,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Creality/CR-20 Pro/Configuration_adv.h b/config/examples/Creality/CR-20 Pro/Configuration_adv.h
index 8ce9e2845aa..9e299c66e0f 100644
--- a/config/examples/Creality/CR-20 Pro/Configuration_adv.h	
+++ b/config/examples/Creality/CR-20 Pro/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-20/RepRapWorld Minitronics20/Configuration.h b/config/examples/Creality/CR-20/RepRapWorld Minitronics20/Configuration.h
index 738517f23c4..94196f644e1 100644
--- a/config/examples/Creality/CR-20/RepRapWorld Minitronics20/Configuration.h	
+++ b/config/examples/Creality/CR-20/RepRapWorld Minitronics20/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/CR-20/RepRapWorld Minitronics20/Configuration_adv.h b/config/examples/Creality/CR-20/RepRapWorld Minitronics20/Configuration_adv.h
index 2115ddeefe7..22444496de8 100644
--- a/config/examples/Creality/CR-20/RepRapWorld Minitronics20/Configuration_adv.h	
+++ b/config/examples/Creality/CR-20/RepRapWorld Minitronics20/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-20/Stock/Configuration.h b/config/examples/Creality/CR-20/Stock/Configuration.h
index b027dcaf905..07b7515c44f 100644
--- a/config/examples/Creality/CR-20/Stock/Configuration.h
+++ b/config/examples/Creality/CR-20/Stock/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/CR-20/Stock/Configuration_adv.h b/config/examples/Creality/CR-20/Stock/Configuration_adv.h
index 2115ddeefe7..22444496de8 100644
--- a/config/examples/Creality/CR-20/Stock/Configuration_adv.h
+++ b/config/examples/Creality/CR-20/Stock/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-30 PrintMill/Configuration.h b/config/examples/Creality/CR-30 PrintMill/Configuration.h
index a17de1a2ecb..837be88bd16 100644
--- a/config/examples/Creality/CR-30 PrintMill/Configuration.h	
+++ b/config/examples/Creality/CR-30 PrintMill/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  0 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/CR-30 PrintMill/Configuration_adv.h b/config/examples/Creality/CR-30 PrintMill/Configuration_adv.h
index 399e11fb2aa..fef4a530d96 100644
--- a/config/examples/Creality/CR-30 PrintMill/Configuration_adv.h	
+++ b/config/examples/Creality/CR-30 PrintMill/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2289,7 +2308,7 @@
     #endif
   #endif
 
-  #define BABYSTEP_DISPLAY_TOTAL          // Display total babysteps since last G28
+  #define BABYSTEP_DISPLAY_TOTAL            // Display total babysteps since last G28
 
   //#define BABYSTEP_ZPROBE_OFFSET          // Combine M851 Z and Babystepping
   //#define BABYSTEP_GLOBAL_Z               // Combine M424 Z and Babystepping
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-6 SE/Configuration.h b/config/examples/Creality/CR-6 SE/Configuration.h
index d723885484b..5a90dd90001 100644
--- a/config/examples/Creality/CR-6 SE/Configuration.h	
+++ b/config/examples/Creality/CR-6 SE/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  3 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/CR-6 SE/Configuration_adv.h b/config/examples/Creality/CR-6 SE/Configuration_adv.h
index e2ced7e97df..2c2a8b0935a 100644
--- a/config/examples/Creality/CR-6 SE/Configuration_adv.h	
+++ b/config/examples/Creality/CR-6 SE/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 60        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        60 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4399,44 +4418,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4446,11 +4510,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4461,6 +4540,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4483,7 +4624,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/CR-8/Configuration.h b/config/examples/Creality/CR-8/Configuration.h
index dda24357a05..9031e45b6a8 100644
--- a/config/examples/Creality/CR-8/Configuration.h
+++ b/config/examples/Creality/CR-8/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/CR-8/Configuration_adv.h b/config/examples/Creality/CR-8/Configuration_adv.h
index b38e490c89c..7ecf7996a96 100644
--- a/config/examples/Creality/CR-8/Configuration_adv.h
+++ b/config/examples/Creality/CR-8/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-2 Pro/CrealityV24S4/Configuration.h b/config/examples/Creality/Ender-2 Pro/CrealityV24S4/Configuration.h
index 6d6e9586779..c6ea9d6dda7 100644
--- a/config/examples/Creality/Ender-2 Pro/CrealityV24S4/Configuration.h	
+++ b/config/examples/Creality/Ender-2 Pro/CrealityV24S4/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -2437,7 +2440,7 @@
 
 #define PREHEAT_2_LABEL       "ABS"
 #define PREHEAT_2_TEMP_HOTEND 240
-#define PREHEAT_2_TEMP_BED    80
+#define PREHEAT_2_TEMP_BED     80
 #define PREHEAT_2_TEMP_CHAMBER 35
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
diff --git a/config/examples/Creality/Ender-2 Pro/CrealityV24S4/Configuration_adv.h b/config/examples/Creality/Ender-2 Pro/CrealityV24S4/Configuration_adv.h
index 6f6c10bcde1..f1aed26454d 100644
--- a/config/examples/Creality/Ender-2 Pro/CrealityV24S4/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-2 Pro/CrealityV24S4/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-2 Pro/CrealityV423/Configuration.h b/config/examples/Creality/Ender-2 Pro/CrealityV423/Configuration.h
index 6e76b0605d3..d10c579dd04 100644
--- a/config/examples/Creality/Ender-2 Pro/CrealityV423/Configuration.h	
+++ b/config/examples/Creality/Ender-2 Pro/CrealityV423/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-2 Pro/CrealityV423/Configuration_adv.h b/config/examples/Creality/Ender-2 Pro/CrealityV423/Configuration_adv.h
index 0c9eeaace47..83a0d031403 100644
--- a/config/examples/Creality/Ender-2 Pro/CrealityV423/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-2 Pro/CrealityV423/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-2/Configuration.h b/config/examples/Creality/Ender-2/Configuration.h
index 49a5ad40529..37df7efc594 100644
--- a/config/examples/Creality/Ender-2/Configuration.h
+++ b/config/examples/Creality/Ender-2/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-2/Configuration_adv.h b/config/examples/Creality/Ender-2/Configuration_adv.h
index e07544b7b67..42a03b85f28 100644
--- a/config/examples/Creality/Ender-2/Configuration_adv.h
+++ b/config/examples/Creality/Ender-2/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 Max Neo/Configuration.h b/config/examples/Creality/Ender-3 Max Neo/Configuration.h
index 999b722f5bd..1190f721396 100644
--- a/config/examples/Creality/Ender-3 Max Neo/Configuration.h	
+++ b/config/examples/Creality/Ender-3 Max Neo/Configuration.h	
@@ -109,7 +109,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -388,14 +388,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 Max Neo/Configuration_adv.h b/config/examples/Creality/Ender-3 Max Neo/Configuration_adv.h
index b7c6bc08f6b..44cf3e25266 100644
--- a/config/examples/Creality/Ender-3 Max Neo/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 Max Neo/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 Max/Configuration.h b/config/examples/Creality/Ender-3 Max/Configuration.h
index 16a3a7de81b..dd6b488e888 100644
--- a/config/examples/Creality/Ender-3 Max/Configuration.h	
+++ b/config/examples/Creality/Ender-3 Max/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1481,7 +1482,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1651,6 +1653,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1688,8 +1691,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 Max/Configuration_adv.h b/config/examples/Creality/Ender-3 Max/Configuration_adv.h
index 0dc3bb9ec66..c069b88b980 100644
--- a/config/examples/Creality/Ender-3 Max/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 Max/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 Neo/Configuration.h b/config/examples/Creality/Ender-3 Neo/Configuration.h
index d93a02e92b9..45a77d39ba3 100644
--- a/config/examples/Creality/Ender-3 Neo/Configuration.h	
+++ b/config/examples/Creality/Ender-3 Neo/Configuration.h	
@@ -109,7 +109,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -388,14 +388,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  3 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 Neo/Configuration_adv.h b/config/examples/Creality/Ender-3 Neo/Configuration_adv.h
index c1d3053a5ba..33e479ed0d7 100644
--- a/config/examples/Creality/Ender-3 Neo/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 Neo/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR 1.4 Turbo/Configuration.h b/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR 1.4 Turbo/Configuration.h
index db246684753..1c0fd3f517f 100644
--- a/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR 1.4 Turbo/Configuration.h	
+++ b/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR 1.4 Turbo/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR 1.4 Turbo/Configuration_adv.h b/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR 1.4 Turbo/Configuration_adv.h
index 6f23aa0f936..2507f6002be 100644
--- a/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR 1.4 Turbo/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR 1.4 Turbo/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2279,7 +2298,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2289,7 +2308,7 @@
     #endif
   #endif
 
-  #define BABYSTEP_DISPLAY_TOTAL          // Display total babysteps since last G28
+  #define BABYSTEP_DISPLAY_TOTAL            // Display total babysteps since last G28
 
   //#define BABYSTEP_ZPROBE_OFFSET          // Combine M851 Z and Babystepping
   //#define BABYSTEP_GLOBAL_Z               // Combine M424 Z and Babystepping
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 1.0/Configuration.h b/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 1.0/Configuration.h
index ff00b5eca8d..9b3fbdff4c6 100644
--- a/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 1.0/Configuration.h	
+++ b/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 1.0/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 1.0/Configuration_adv.h b/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 1.0/Configuration_adv.h
index 33930353d57..a01c0194557 100644
--- a/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 1.0/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 1.0/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 1.2/Configuration.h b/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 1.2/Configuration.h
index 50f7b35b4b0..50a1e2be59d 100644
--- a/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 1.2/Configuration.h	
+++ b/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 1.2/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 1.2/Configuration_adv.h b/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 1.2/Configuration_adv.h
index 33930353d57..a01c0194557 100644
--- a/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 1.2/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 1.2/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 2.0/Configuration.h b/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 2.0/Configuration.h
index 165f492c2cb..10380796ded 100644
--- a/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 2.0/Configuration.h	
+++ b/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 2.0/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h b/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h
index 6aa108fbbb5..676f8c77876 100644
--- a/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 3.0/Configuration.h b/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 3.0/Configuration.h
index ce0599e3e83..684913fb620 100644
--- a/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 3.0/Configuration.h	
+++ b/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 3.0/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1476,7 +1477,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1646,6 +1648,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1683,8 +1686,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h b/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h
index 5b15f204040..ec27e0c0352 100644
--- a/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 Pro/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 Pro/Creality free-runs/Configuration.h b/config/examples/Creality/Ender-3 Pro/Creality free-runs/Configuration.h
index bfa19916373..60594b786cb 100644
--- a/config/examples/Creality/Ender-3 Pro/Creality free-runs/Configuration.h	
+++ b/config/examples/Creality/Ender-3 Pro/Creality free-runs/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 Pro/Creality free-runs/Configuration_adv.h b/config/examples/Creality/Ender-3 Pro/Creality free-runs/Configuration_adv.h
index b335012997e..1e4590e087a 100644
--- a/config/examples/Creality/Ender-3 Pro/Creality free-runs/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 Pro/Creality free-runs/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 Pro/CrealityV1/Configuration.h b/config/examples/Creality/Ender-3 Pro/CrealityV1/Configuration.h
index 4906fe69e3e..686321afdf2 100644
--- a/config/examples/Creality/Ender-3 Pro/CrealityV1/Configuration.h	
+++ b/config/examples/Creality/Ender-3 Pro/CrealityV1/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 Pro/CrealityV1/Configuration_adv.h b/config/examples/Creality/Ender-3 Pro/CrealityV1/Configuration_adv.h
index 0e250930022..929f69ba06c 100644
--- a/config/examples/Creality/Ender-3 Pro/CrealityV1/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 Pro/CrealityV1/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 Pro/CrealityV422/Configuration.h b/config/examples/Creality/Ender-3 Pro/CrealityV422/Configuration.h
index bf5eda1ca29..4cd13b64241 100644
--- a/config/examples/Creality/Ender-3 Pro/CrealityV422/Configuration.h	
+++ b/config/examples/Creality/Ender-3 Pro/CrealityV422/Configuration.h	
@@ -107,7 +107,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -386,14 +386,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 Pro/CrealityV422/Configuration_adv.h b/config/examples/Creality/Ender-3 Pro/CrealityV422/Configuration_adv.h
index 98fcf975d93..24d6eaae926 100644
--- a/config/examples/Creality/Ender-3 Pro/CrealityV422/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 Pro/CrealityV422/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 Pro/CrealityV427 - BLTouch/Configuration.h b/config/examples/Creality/Ender-3 Pro/CrealityV427 - BLTouch/Configuration.h
index 5c063dd5d1d..34ef5f77881 100644
--- a/config/examples/Creality/Ender-3 Pro/CrealityV427 - BLTouch/Configuration.h	
+++ b/config/examples/Creality/Ender-3 Pro/CrealityV427 - BLTouch/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 Pro/CrealityV427 - BLTouch/Configuration_adv.h b/config/examples/Creality/Ender-3 Pro/CrealityV427 - BLTouch/Configuration_adv.h
index 4382e720069..73aff74548c 100644
--- a/config/examples/Creality/Ender-3 Pro/CrealityV427 - BLTouch/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 Pro/CrealityV427 - BLTouch/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 Pro/CrealityV427/Configuration.h b/config/examples/Creality/Ender-3 Pro/CrealityV427/Configuration.h
index 2855840b23b..3877326da0e 100644
--- a/config/examples/Creality/Ender-3 Pro/CrealityV427/Configuration.h	
+++ b/config/examples/Creality/Ender-3 Pro/CrealityV427/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 Pro/CrealityV427/Configuration_adv.h b/config/examples/Creality/Ender-3 Pro/CrealityV427/Configuration_adv.h
index 1d5f7318a0b..6d41cc25047 100644
--- a/config/examples/Creality/Ender-3 Pro/CrealityV427/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 Pro/CrealityV427/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 S1 Plus/Configuration.h b/config/examples/Creality/Ender-3 S1 Plus/Configuration.h
index e04656926e1..4814bc8da6a 100644
--- a/config/examples/Creality/Ender-3 S1 Plus/Configuration.h	
+++ b/config/examples/Creality/Ender-3 S1 Plus/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 S1 Plus/Configuration_adv.h b/config/examples/Creality/Ender-3 S1 Plus/Configuration_adv.h
index 0a37f95c831..95e94bd884d 100644
--- a/config/examples/Creality/Ender-3 S1 Plus/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 S1 Plus/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 S1 Pro/Configuration.h b/config/examples/Creality/Ender-3 S1 Pro/Configuration.h
index 98b23e73e77..25db8600a52 100644
--- a/config/examples/Creality/Ender-3 S1 Pro/Configuration.h	
+++ b/config/examples/Creality/Ender-3 S1 Pro/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 S1 Pro/Configuration_adv.h b/config/examples/Creality/Ender-3 S1 Pro/Configuration_adv.h
index 0a37f95c831..95e94bd884d 100644
--- a/config/examples/Creality/Ender-3 S1 Pro/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 S1 Pro/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 S1/STM32F1/Configuration.h b/config/examples/Creality/Ender-3 S1/STM32F1/Configuration.h
index 128c62edcb3..a7e6def4b0c 100644
--- a/config/examples/Creality/Ender-3 S1/STM32F1/Configuration.h	
+++ b/config/examples/Creality/Ender-3 S1/STM32F1/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -2437,7 +2440,7 @@
 
 #define PREHEAT_2_LABEL       "TPU"
 #define PREHEAT_2_TEMP_HOTEND 220
-#define PREHEAT_2_TEMP_BED    30
+#define PREHEAT_2_TEMP_BED     30
 #define PREHEAT_2_TEMP_CHAMBER 35
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
diff --git a/config/examples/Creality/Ender-3 S1/STM32F1/Configuration_adv.h b/config/examples/Creality/Ender-3 S1/STM32F1/Configuration_adv.h
index 1c3951c0945..fa4c2cabddc 100644
--- a/config/examples/Creality/Ender-3 S1/STM32F1/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 S1/STM32F1/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 S1/STM32F4/Configuration.h b/config/examples/Creality/Ender-3 S1/STM32F4/Configuration.h
index de3f8b7a927..55e434dc53e 100644
--- a/config/examples/Creality/Ender-3 S1/STM32F4/Configuration.h	
+++ b/config/examples/Creality/Ender-3 S1/STM32F4/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 S1/STM32F4/Configuration_adv.h b/config/examples/Creality/Ender-3 S1/STM32F4/Configuration_adv.h
index 3f9e2a008a4..a34ab16586b 100644
--- a/config/examples/Creality/Ender-3 S1/STM32F4/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 S1/STM32F4/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 #define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 V2 Neo/BigTreeTech SKR Mini E3 3.0/Configuration.h b/config/examples/Creality/Ender-3 V2 Neo/BigTreeTech SKR Mini E3 3.0/Configuration.h
index c58ef636f6f..33c368189fe 100644
--- a/config/examples/Creality/Ender-3 V2 Neo/BigTreeTech SKR Mini E3 3.0/Configuration.h	
+++ b/config/examples/Creality/Ender-3 V2 Neo/BigTreeTech SKR Mini E3 3.0/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 V2 Neo/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h b/config/examples/Creality/Ender-3 V2 Neo/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h
index 3ff0fff2fcf..628c2a78dd7 100644
--- a/config/examples/Creality/Ender-3 V2 Neo/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 V2 Neo/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 V2 Neo/CrealityV422/Configuration.h b/config/examples/Creality/Ender-3 V2 Neo/CrealityV422/Configuration.h
index c8fb56a78d9..da4e3864d63 100644
--- a/config/examples/Creality/Ender-3 V2 Neo/CrealityV422/Configuration.h	
+++ b/config/examples/Creality/Ender-3 V2 Neo/CrealityV422/Configuration.h	
@@ -109,7 +109,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -388,14 +388,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 V2 Neo/CrealityV422/Configuration_adv.h b/config/examples/Creality/Ender-3 V2 Neo/CrealityV422/Configuration_adv.h
index 84bfa48051e..6fe271a81c7 100644
--- a/config/examples/Creality/Ender-3 V2 Neo/CrealityV422/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 V2 Neo/CrealityV422/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 V2/BigTreeTech SKR E3 Turbo/CrealityUI/Configuration.h b/config/examples/Creality/Ender-3 V2/BigTreeTech SKR E3 Turbo/CrealityUI/Configuration.h
index bc0377d5639..731f021be4f 100644
--- a/config/examples/Creality/Ender-3 V2/BigTreeTech SKR E3 Turbo/CrealityUI/Configuration.h	
+++ b/config/examples/Creality/Ender-3 V2/BigTreeTech SKR E3 Turbo/CrealityUI/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 V2/BigTreeTech SKR E3 Turbo/CrealityUI/Configuration_adv.h b/config/examples/Creality/Ender-3 V2/BigTreeTech SKR E3 Turbo/CrealityUI/Configuration_adv.h
index 8dc4d914eb1..57708a0f0d7 100644
--- a/config/examples/Creality/Ender-3 V2/BigTreeTech SKR E3 Turbo/CrealityUI/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 V2/BigTreeTech SKR E3 Turbo/CrealityUI/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 V2/BigTreeTech SKR E3 Turbo/MarlinUI/Configuration.h b/config/examples/Creality/Ender-3 V2/BigTreeTech SKR E3 Turbo/MarlinUI/Configuration.h
index c881fde8e89..d8e6784c204 100644
--- a/config/examples/Creality/Ender-3 V2/BigTreeTech SKR E3 Turbo/MarlinUI/Configuration.h	
+++ b/config/examples/Creality/Ender-3 V2/BigTreeTech SKR E3 Turbo/MarlinUI/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 V2/BigTreeTech SKR E3 Turbo/MarlinUI/Configuration_adv.h b/config/examples/Creality/Ender-3 V2/BigTreeTech SKR E3 Turbo/MarlinUI/Configuration_adv.h
index c9ea215a696..cca9da8fb67 100644
--- a/config/examples/Creality/Ender-3 V2/BigTreeTech SKR E3 Turbo/MarlinUI/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 V2/BigTreeTech SKR E3 Turbo/MarlinUI/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 2.0/CrealityUI/Configuration.h b/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 2.0/CrealityUI/Configuration.h
index d2b9e7105a8..f21c594d7b7 100644
--- a/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 2.0/CrealityUI/Configuration.h	
+++ b/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 2.0/CrealityUI/Configuration.h	
@@ -109,7 +109,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -388,14 +388,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 2.0/CrealityUI/Configuration_adv.h b/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 2.0/CrealityUI/Configuration_adv.h
index 623e44de7b8..735fc813cfb 100644
--- a/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 2.0/CrealityUI/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 2.0/CrealityUI/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 2.0/MarlinUI/Configuration.h b/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 2.0/MarlinUI/Configuration.h
index f370000867d..64e31d76d86 100644
--- a/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 2.0/MarlinUI/Configuration.h	
+++ b/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 2.0/MarlinUI/Configuration.h	
@@ -109,7 +109,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -388,14 +388,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 2.0/MarlinUI/Configuration_adv.h b/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 2.0/MarlinUI/Configuration_adv.h
index 6b79c91795e..df31b04e688 100644
--- a/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 2.0/MarlinUI/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 2.0/MarlinUI/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 3.0/CrealityUI/Configuration.h b/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 3.0/CrealityUI/Configuration.h
index 17330afcd7c..d8bc187ba0a 100644
--- a/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 3.0/CrealityUI/Configuration.h	
+++ b/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 3.0/CrealityUI/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 3.0/CrealityUI/Configuration_adv.h b/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 3.0/CrealityUI/Configuration_adv.h
index 0e0ee742301..079b47210da 100644
--- a/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 3.0/CrealityUI/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 3.0/CrealityUI/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 3.0/MarlinUI/Configuration.h b/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 3.0/MarlinUI/Configuration.h
index 36cc845d6bf..d390df6355c 100644
--- a/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 3.0/MarlinUI/Configuration.h	
+++ b/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 3.0/MarlinUI/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 3.0/MarlinUI/Configuration_adv.h b/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 3.0/MarlinUI/Configuration_adv.h
index cdbf07bc77e..ccec600158c 100644
--- a/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 3.0/MarlinUI/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 V2/BigTreeTech SKR Mini E3 3.0/MarlinUI/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 V2/CrealityV422/CrealityUI/Configuration.h b/config/examples/Creality/Ender-3 V2/CrealityV422/CrealityUI/Configuration.h
index 84d8a16bafc..eadeeae833e 100644
--- a/config/examples/Creality/Ender-3 V2/CrealityV422/CrealityUI/Configuration.h	
+++ b/config/examples/Creality/Ender-3 V2/CrealityV422/CrealityUI/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 V2/CrealityV422/CrealityUI/Configuration_adv.h b/config/examples/Creality/Ender-3 V2/CrealityV422/CrealityUI/Configuration_adv.h
index 3ec7db06805..a8aa10b8239 100644
--- a/config/examples/Creality/Ender-3 V2/CrealityV422/CrealityUI/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 V2/CrealityV422/CrealityUI/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 V2/CrealityV422/MarlinUI/Configuration.h b/config/examples/Creality/Ender-3 V2/CrealityV422/MarlinUI/Configuration.h
index f3ac2c9bf38..3e773f659ff 100644
--- a/config/examples/Creality/Ender-3 V2/CrealityV422/MarlinUI/Configuration.h	
+++ b/config/examples/Creality/Ender-3 V2/CrealityV422/MarlinUI/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 V2/CrealityV422/MarlinUI/Configuration_adv.h b/config/examples/Creality/Ender-3 V2/CrealityV422/MarlinUI/Configuration_adv.h
index 7806ebd73ec..6fca462ae79 100644
--- a/config/examples/Creality/Ender-3 V2/CrealityV422/MarlinUI/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 V2/CrealityV422/MarlinUI/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 V2/CrealityV427/CrealityUI/Configuration.h b/config/examples/Creality/Ender-3 V2/CrealityV427/CrealityUI/Configuration.h
index 735c8b12801..17ecc76957a 100644
--- a/config/examples/Creality/Ender-3 V2/CrealityV427/CrealityUI/Configuration.h	
+++ b/config/examples/Creality/Ender-3 V2/CrealityV427/CrealityUI/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 V2/CrealityV427/CrealityUI/Configuration_adv.h b/config/examples/Creality/Ender-3 V2/CrealityV427/CrealityUI/Configuration_adv.h
index efacbb4ebca..e43cb57ccb6 100644
--- a/config/examples/Creality/Ender-3 V2/CrealityV427/CrealityUI/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 V2/CrealityV427/CrealityUI/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3 V2/CrealityV427/MarlinUI/Configuration.h b/config/examples/Creality/Ender-3 V2/CrealityV427/MarlinUI/Configuration.h
index 253d9788505..dfe2cb8041a 100644
--- a/config/examples/Creality/Ender-3 V2/CrealityV427/MarlinUI/Configuration.h	
+++ b/config/examples/Creality/Ender-3 V2/CrealityV427/MarlinUI/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3 V2/CrealityV427/MarlinUI/Configuration_adv.h b/config/examples/Creality/Ender-3 V2/CrealityV427/MarlinUI/Configuration_adv.h
index 3f6148cdf13..3d720d528da 100644
--- a/config/examples/Creality/Ender-3 V2/CrealityV427/MarlinUI/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3 V2/CrealityV427/MarlinUI/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/BigTreeTech E3 RRF/Configuration.h b/config/examples/Creality/Ender-3/BigTreeTech E3 RRF/Configuration.h
index 4f1a79d57d8..983c474f103 100644
--- a/config/examples/Creality/Ender-3/BigTreeTech E3 RRF/Configuration.h	
+++ b/config/examples/Creality/Ender-3/BigTreeTech E3 RRF/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1476,7 +1477,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1646,6 +1648,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1683,8 +1686,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3/BigTreeTech E3 RRF/Configuration_adv.h b/config/examples/Creality/Ender-3/BigTreeTech E3 RRF/Configuration_adv.h
index 11d6a531cb4..453a78b0d45 100644
--- a/config/examples/Creality/Ender-3/BigTreeTech E3 RRF/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3/BigTreeTech E3 RRF/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/BigTreeTech Manta E3 EZ/Configuration.h b/config/examples/Creality/Ender-3/BigTreeTech Manta E3 EZ/Configuration.h
index 272d55be67a..0011cf13ab1 100644
--- a/config/examples/Creality/Ender-3/BigTreeTech Manta E3 EZ/Configuration.h	
+++ b/config/examples/Creality/Ender-3/BigTreeTech Manta E3 EZ/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1474,7 +1475,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1644,6 +1646,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1681,8 +1684,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1904,7 +1907,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Creality/Ender-3/BigTreeTech Manta E3 EZ/Configuration_adv.h b/config/examples/Creality/Ender-3/BigTreeTech Manta E3 EZ/Configuration_adv.h
index d8f6ede3b9f..e56f843ada1 100644
--- a/config/examples/Creality/Ender-3/BigTreeTech Manta E3 EZ/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3/BigTreeTech Manta E3 EZ/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/BigTreeTech SKR 1.4/Configuration.h b/config/examples/Creality/Ender-3/BigTreeTech SKR 1.4/Configuration.h
index 2955f95e67b..25fa3455abf 100644
--- a/config/examples/Creality/Ender-3/BigTreeTech SKR 1.4/Configuration.h	
+++ b/config/examples/Creality/Ender-3/BigTreeTech SKR 1.4/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3/BigTreeTech SKR 1.4/Configuration_adv.h b/config/examples/Creality/Ender-3/BigTreeTech SKR 1.4/Configuration_adv.h
index 0546112c6a5..bf91e590cfa 100644
--- a/config/examples/Creality/Ender-3/BigTreeTech SKR 1.4/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3/BigTreeTech SKR 1.4/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/BigTreeTech SKR E3 Turbo/2-into-1 Hotend/Configuration.h b/config/examples/Creality/Ender-3/BigTreeTech SKR E3 Turbo/2-into-1 Hotend/Configuration.h
index 6212c1ccad1..1b3071b458e 100644
--- a/config/examples/Creality/Ender-3/BigTreeTech SKR E3 Turbo/2-into-1 Hotend/Configuration.h	
+++ b/config/examples/Creality/Ender-3/BigTreeTech SKR E3 Turbo/2-into-1 Hotend/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1476,7 +1477,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1646,6 +1648,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1683,8 +1686,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3/BigTreeTech SKR E3 Turbo/2-into-1 Hotend/Configuration_adv.h b/config/examples/Creality/Ender-3/BigTreeTech SKR E3 Turbo/2-into-1 Hotend/Configuration_adv.h
index dfda178483f..db25adae2fa 100644
--- a/config/examples/Creality/Ender-3/BigTreeTech SKR E3 Turbo/2-into-1 Hotend/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3/BigTreeTech SKR E3 Turbo/2-into-1 Hotend/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/BigTreeTech SKR E3 Turbo/Dual Z/Configuration.h b/config/examples/Creality/Ender-3/BigTreeTech SKR E3 Turbo/Dual Z/Configuration.h
index 6e6b3fc3a32..88d4def9ec6 100644
--- a/config/examples/Creality/Ender-3/BigTreeTech SKR E3 Turbo/Dual Z/Configuration.h	
+++ b/config/examples/Creality/Ender-3/BigTreeTech SKR E3 Turbo/Dual Z/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1476,7 +1477,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1646,6 +1648,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1683,8 +1686,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3/BigTreeTech SKR E3 Turbo/Dual Z/Configuration_adv.h b/config/examples/Creality/Ender-3/BigTreeTech SKR E3 Turbo/Dual Z/Configuration_adv.h
index 61df59567ea..c3d7b45f4eb 100644
--- a/config/examples/Creality/Ender-3/BigTreeTech SKR E3 Turbo/Dual Z/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3/BigTreeTech SKR E3 Turbo/Dual Z/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/BigTreeTech SKR E3 Turbo/Single Extruder/Configuration.h b/config/examples/Creality/Ender-3/BigTreeTech SKR E3 Turbo/Single Extruder/Configuration.h
index 9014d6f2cd3..8060b86b579 100644
--- a/config/examples/Creality/Ender-3/BigTreeTech SKR E3 Turbo/Single Extruder/Configuration.h	
+++ b/config/examples/Creality/Ender-3/BigTreeTech SKR E3 Turbo/Single Extruder/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1476,7 +1477,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1646,6 +1648,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1683,8 +1686,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3/BigTreeTech SKR E3 Turbo/Single Extruder/Configuration_adv.h b/config/examples/Creality/Ender-3/BigTreeTech SKR E3 Turbo/Single Extruder/Configuration_adv.h
index dfda178483f..db25adae2fa 100644
--- a/config/examples/Creality/Ender-3/BigTreeTech SKR E3 Turbo/Single Extruder/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3/BigTreeTech SKR E3 Turbo/Single Extruder/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/BigTreeTech SKR E3-DIP V1.1/Configuration.h b/config/examples/Creality/Ender-3/BigTreeTech SKR E3-DIP V1.1/Configuration.h
index 1a96f921cd0..7214fc4c87f 100644
--- a/config/examples/Creality/Ender-3/BigTreeTech SKR E3-DIP V1.1/Configuration.h	
+++ b/config/examples/Creality/Ender-3/BigTreeTech SKR E3-DIP V1.1/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3/BigTreeTech SKR E3-DIP V1.1/Configuration_adv.h b/config/examples/Creality/Ender-3/BigTreeTech SKR E3-DIP V1.1/Configuration_adv.h
index 1acc82b7c6b..274ec7d5f65 100644
--- a/config/examples/Creality/Ender-3/BigTreeTech SKR E3-DIP V1.1/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3/BigTreeTech SKR E3-DIP V1.1/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 1.0/Configuration.h b/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 1.0/Configuration.h
index b051c3f46cd..17fb4051b96 100644
--- a/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 1.0/Configuration.h	
+++ b/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 1.0/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1476,7 +1477,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1646,6 +1648,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1683,8 +1686,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 1.0/Configuration_adv.h b/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 1.0/Configuration_adv.h
index d7cb8e26114..ac3aa9191b7 100644
--- a/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 1.0/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 1.0/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 1.2/Configuration.h b/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 1.2/Configuration.h
index fdeffe06156..f23d087c9df 100644
--- a/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 1.2/Configuration.h	
+++ b/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 1.2/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1476,7 +1477,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1646,6 +1648,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1683,8 +1686,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 1.2/Configuration_adv.h b/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 1.2/Configuration_adv.h
index d7cb8e26114..ac3aa9191b7 100644
--- a/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 1.2/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 1.2/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 2.0/Configuration.h b/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 2.0/Configuration.h
index 706e59f20ed..adaf46565b2 100644
--- a/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 2.0/Configuration.h	
+++ b/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 2.0/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1476,7 +1477,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1646,6 +1648,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1683,8 +1686,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h b/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h
index be375ba3cc8..da1706dbbcf 100644
--- a/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 3.0/Configuration.h b/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 3.0/Configuration.h
index f9550cb050c..662bc85e3d1 100644
--- a/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 3.0/Configuration.h	
+++ b/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 3.0/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1476,7 +1477,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1646,6 +1648,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1683,8 +1686,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h b/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h
index da8a8736a25..9c63c12e344 100644
--- a/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/Creality free-runs/Configuration.h b/config/examples/Creality/Ender-3/Creality free-runs/Configuration.h
index ee60376848b..4f5e0b7699e 100644
--- a/config/examples/Creality/Ender-3/Creality free-runs/Configuration.h	
+++ b/config/examples/Creality/Ender-3/Creality free-runs/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3/Creality free-runs/Configuration_adv.h b/config/examples/Creality/Ender-3/Creality free-runs/Configuration_adv.h
index b335012997e..1e4590e087a 100644
--- a/config/examples/Creality/Ender-3/Creality free-runs/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3/Creality free-runs/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/CrealityV1/Configuration.h b/config/examples/Creality/Ender-3/CrealityV1/Configuration.h
index 70d0939e05b..3d6cb9f68a4 100644
--- a/config/examples/Creality/Ender-3/CrealityV1/Configuration.h
+++ b/config/examples/Creality/Ender-3/CrealityV1/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3/CrealityV1/Configuration_adv.h b/config/examples/Creality/Ender-3/CrealityV1/Configuration_adv.h
index 0e250930022..929f69ba06c 100644
--- a/config/examples/Creality/Ender-3/CrealityV1/Configuration_adv.h
+++ b/config/examples/Creality/Ender-3/CrealityV1/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/CrealityV422/Configuration.h b/config/examples/Creality/Ender-3/CrealityV422/Configuration.h
index 73c05b648ee..ea8a2799293 100644
--- a/config/examples/Creality/Ender-3/CrealityV422/Configuration.h
+++ b/config/examples/Creality/Ender-3/CrealityV422/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1484,7 +1485,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1654,6 +1656,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1691,8 +1694,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3/CrealityV422/Configuration_adv.h b/config/examples/Creality/Ender-3/CrealityV422/Configuration_adv.h
index a91f76ac99e..f5ff08c828d 100644
--- a/config/examples/Creality/Ender-3/CrealityV422/Configuration_adv.h
+++ b/config/examples/Creality/Ender-3/CrealityV422/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/CrealityV427/Configuration.h b/config/examples/Creality/Ender-3/CrealityV427/Configuration.h
index bdbba7ea2fb..be2f9644145 100644
--- a/config/examples/Creality/Ender-3/CrealityV427/Configuration.h
+++ b/config/examples/Creality/Ender-3/CrealityV427/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3/CrealityV427/Configuration_adv.h b/config/examples/Creality/Ender-3/CrealityV427/Configuration_adv.h
index 1d5f7318a0b..6d41cc25047 100644
--- a/config/examples/Creality/Ender-3/CrealityV427/Configuration_adv.h
+++ b/config/examples/Creality/Ender-3/CrealityV427/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/FYSETC Cheetah 1.2/BLTouch/Configuration.h b/config/examples/Creality/Ender-3/FYSETC Cheetah 1.2/BLTouch/Configuration.h
index 08747ec603b..4927b925dee 100644
--- a/config/examples/Creality/Ender-3/FYSETC Cheetah 1.2/BLTouch/Configuration.h	
+++ b/config/examples/Creality/Ender-3/FYSETC Cheetah 1.2/BLTouch/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES 10 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3/FYSETC Cheetah 1.2/BLTouch/Configuration_adv.h b/config/examples/Creality/Ender-3/FYSETC Cheetah 1.2/BLTouch/Configuration_adv.h
index 5c09432a8fe..02d2da7f09d 100644
--- a/config/examples/Creality/Ender-3/FYSETC Cheetah 1.2/BLTouch/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3/FYSETC Cheetah 1.2/BLTouch/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/FYSETC Cheetah 1.2/base/Configuration.h b/config/examples/Creality/Ender-3/FYSETC Cheetah 1.2/base/Configuration.h
index 02ec2ada91d..0ecf579f625 100644
--- a/config/examples/Creality/Ender-3/FYSETC Cheetah 1.2/base/Configuration.h	
+++ b/config/examples/Creality/Ender-3/FYSETC Cheetah 1.2/base/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3/FYSETC Cheetah 1.2/base/Configuration_adv.h b/config/examples/Creality/Ender-3/FYSETC Cheetah 1.2/base/Configuration_adv.h
index 5c09432a8fe..02d2da7f09d 100644
--- a/config/examples/Creality/Ender-3/FYSETC Cheetah 1.2/base/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3/FYSETC Cheetah 1.2/base/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/FYSETC Cheetah 2.0/Configuration.h b/config/examples/Creality/Ender-3/FYSETC Cheetah 2.0/Configuration.h
index bc331b984ca..9fd4ac6d23a 100644
--- a/config/examples/Creality/Ender-3/FYSETC Cheetah 2.0/Configuration.h	
+++ b/config/examples/Creality/Ender-3/FYSETC Cheetah 2.0/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3/FYSETC Cheetah 2.0/Configuration_adv.h b/config/examples/Creality/Ender-3/FYSETC Cheetah 2.0/Configuration_adv.h
index 80818275c1c..1db9aad664e 100644
--- a/config/examples/Creality/Ender-3/FYSETC Cheetah 2.0/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3/FYSETC Cheetah 2.0/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/FYSETC Cheetah/BLTouch/Configuration.h b/config/examples/Creality/Ender-3/FYSETC Cheetah/BLTouch/Configuration.h
index 7461d1b498e..346554d4576 100644
--- a/config/examples/Creality/Ender-3/FYSETC Cheetah/BLTouch/Configuration.h	
+++ b/config/examples/Creality/Ender-3/FYSETC Cheetah/BLTouch/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES 10 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3/FYSETC Cheetah/BLTouch/Configuration_adv.h b/config/examples/Creality/Ender-3/FYSETC Cheetah/BLTouch/Configuration_adv.h
index 5c09432a8fe..02d2da7f09d 100644
--- a/config/examples/Creality/Ender-3/FYSETC Cheetah/BLTouch/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3/FYSETC Cheetah/BLTouch/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/FYSETC Cheetah/base/Configuration.h b/config/examples/Creality/Ender-3/FYSETC Cheetah/base/Configuration.h
index b23420d20af..b5e94aebf5a 100644
--- a/config/examples/Creality/Ender-3/FYSETC Cheetah/base/Configuration.h	
+++ b/config/examples/Creality/Ender-3/FYSETC Cheetah/base/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3/FYSETC Cheetah/base/Configuration_adv.h b/config/examples/Creality/Ender-3/FYSETC Cheetah/base/Configuration_adv.h
index 5c09432a8fe..02d2da7f09d 100644
--- a/config/examples/Creality/Ender-3/FYSETC Cheetah/base/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3/FYSETC Cheetah/base/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/MEEB-3DP/Configuration.h b/config/examples/Creality/Ender-3/MEEB-3DP/Configuration.h
index 8f83f05a6c4..c8fe9d0d0c8 100644
--- a/config/examples/Creality/Ender-3/MEEB-3DP/Configuration.h
+++ b/config/examples/Creality/Ender-3/MEEB-3DP/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1483,7 +1484,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1653,6 +1655,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1690,8 +1693,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1913,7 +1916,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Creality/Ender-3/MEEB-3DP/Configuration_adv.h b/config/examples/Creality/Ender-3/MEEB-3DP/Configuration_adv.h
index 6d761668c02..37abbbfacae 100644
--- a/config/examples/Creality/Ender-3/MEEB-3DP/Configuration_adv.h
+++ b/config/examples/Creality/Ender-3/MEEB-3DP/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1081,9 +1081,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1104,19 +1106,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1126,8 +1131,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1180,7 +1185,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1493,8 +1498,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1511,6 +1525,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1525,8 +1543,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1557,6 +1573,9 @@
   // BACK menu items keep the highlight at the top
   #define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2278,7 +2297,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z 10       // (steps or mm) Steps or millimeter distance for each XY babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2288,7 +2307,7 @@
     #endif
   #endif
 
-  #define BABYSTEP_DISPLAY_TOTAL          // Display total babysteps since last G28
+  #define BABYSTEP_DISPLAY_TOTAL            // Display total babysteps since last G28
 
   //#define BABYSTEP_ZPROBE_OFFSET          // Combine M851 Z and Babystepping
   //#define BABYSTEP_GLOBAL_Z               // Combine M424 Z and Babystepping
@@ -2564,7 +2583,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2578,7 +2597,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2712,7 +2731,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4407,44 +4426,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4454,11 +4518,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4469,6 +4548,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4491,7 +4632,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/MKS Robin E3/V1.0/Configuration.h b/config/examples/Creality/Ender-3/MKS Robin E3/V1.0/Configuration.h
index 9fd303b3254..27a14075a67 100644
--- a/config/examples/Creality/Ender-3/MKS Robin E3/V1.0/Configuration.h	
+++ b/config/examples/Creality/Ender-3/MKS Robin E3/V1.0/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1476,7 +1477,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1646,6 +1648,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1683,8 +1686,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3/MKS Robin E3/V1.0/Configuration_adv.h b/config/examples/Creality/Ender-3/MKS Robin E3/V1.0/Configuration_adv.h
index 8dceea5e4d3..b94fff8b928 100644
--- a/config/examples/Creality/Ender-3/MKS Robin E3/V1.0/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3/MKS Robin E3/V1.0/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/MKS Robin E3/V1.1/Configuration.h b/config/examples/Creality/Ender-3/MKS Robin E3/V1.1/Configuration.h
index 3bbfdb8fac3..259d61b54f2 100644
--- a/config/examples/Creality/Ender-3/MKS Robin E3/V1.1/Configuration.h	
+++ b/config/examples/Creality/Ender-3/MKS Robin E3/V1.1/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1476,7 +1477,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1646,6 +1648,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1683,8 +1686,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3/MKS Robin E3/V1.1/Configuration_adv.h b/config/examples/Creality/Ender-3/MKS Robin E3/V1.1/Configuration_adv.h
index 49e69435f1b..fe741ebb4cb 100644
--- a/config/examples/Creality/Ender-3/MKS Robin E3/V1.1/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3/MKS Robin E3/V1.1/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/MKS Robin E3P/Configuration.h b/config/examples/Creality/Ender-3/MKS Robin E3P/Configuration.h
index b48a754b64f..0118e3206f6 100644
--- a/config/examples/Creality/Ender-3/MKS Robin E3P/Configuration.h	
+++ b/config/examples/Creality/Ender-3/MKS Robin E3P/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3/MKS Robin E3P/Configuration_adv.h b/config/examples/Creality/Ender-3/MKS Robin E3P/Configuration_adv.h
index 4861c0b1647..26c5cc4c5c6 100644
--- a/config/examples/Creality/Ender-3/MKS Robin E3P/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3/MKS Robin E3P/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-3/TH3D EZBoard Lite V2/Configuration.h b/config/examples/Creality/Ender-3/TH3D EZBoard Lite V2/Configuration.h
index f83c493dc91..d0092d9181b 100644
--- a/config/examples/Creality/Ender-3/TH3D EZBoard Lite V2/Configuration.h	
+++ b/config/examples/Creality/Ender-3/TH3D EZBoard Lite V2/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-3/TH3D EZBoard Lite V2/Configuration_adv.h b/config/examples/Creality/Ender-3/TH3D EZBoard Lite V2/Configuration_adv.h
index cc4c3e80d18..67677a0e43e 100644
--- a/config/examples/Creality/Ender-3/TH3D EZBoard Lite V2/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-3/TH3D EZBoard Lite V2/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4410,44 +4429,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4457,11 +4521,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4472,6 +4551,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4494,7 +4635,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-4/Configuration.h b/config/examples/Creality/Ender-4/Configuration.h
index e4144826431..723cd0a1df0 100644
--- a/config/examples/Creality/Ender-4/Configuration.h
+++ b/config/examples/Creality/Ender-4/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-4/Configuration_adv.h b/config/examples/Creality/Ender-4/Configuration_adv.h
index 77ac909bc9d..1b6b38e9300 100644
--- a/config/examples/Creality/Ender-4/Configuration_adv.h
+++ b/config/examples/Creality/Ender-4/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-5 Plus/BigTreeTech SKR 3/Configuration.h b/config/examples/Creality/Ender-5 Plus/BigTreeTech SKR 3/Configuration.h
index 0f5ee5ec37d..5e214ea128d 100644
--- a/config/examples/Creality/Ender-5 Plus/BigTreeTech SKR 3/Configuration.h	
+++ b/config/examples/Creality/Ender-5 Plus/BigTreeTech SKR 3/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    5 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  2 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-5 Plus/BigTreeTech SKR 3/Configuration_adv.h b/config/examples/Creality/Ender-5 Plus/BigTreeTech SKR 3/Configuration_adv.h
index 42148adb792..8ef311bfff8 100644
--- a/config/examples/Creality/Ender-5 Plus/BigTreeTech SKR 3/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-5 Plus/BigTreeTech SKR 3/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-5 Plus/CrealityV1 (ORIGIN UI)/Configuration.h b/config/examples/Creality/Ender-5 Plus/CrealityV1 (ORIGIN UI)/Configuration.h
index 59d49ce769d..97ba86989fc 100644
--- a/config/examples/Creality/Ender-5 Plus/CrealityV1 (ORIGIN UI)/Configuration.h	
+++ b/config/examples/Creality/Ender-5 Plus/CrealityV1 (ORIGIN UI)/Configuration.h	
@@ -111,7 +111,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -390,14 +390,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1486,7 +1487,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1657,6 +1659,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1694,8 +1697,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    5 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  2 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-5 Plus/CrealityV1 (ORIGIN UI)/Configuration_adv.h b/config/examples/Creality/Ender-5 Plus/CrealityV1 (ORIGIN UI)/Configuration_adv.h
index eaf7657f04c..aecd187964e 100644
--- a/config/examples/Creality/Ender-5 Plus/CrealityV1 (ORIGIN UI)/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-5 Plus/CrealityV1 (ORIGIN UI)/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-5 Plus/CrealityV1 (RELOADED UI)/Configuration.h b/config/examples/Creality/Ender-5 Plus/CrealityV1 (RELOADED UI)/Configuration.h
index 1a4c4c0683b..d9906973c1d 100644
--- a/config/examples/Creality/Ender-5 Plus/CrealityV1 (RELOADED UI)/Configuration.h	
+++ b/config/examples/Creality/Ender-5 Plus/CrealityV1 (RELOADED UI)/Configuration.h	
@@ -111,7 +111,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -390,14 +390,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1486,7 +1487,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1657,6 +1659,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1694,8 +1697,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    5 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  2 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-5 Plus/CrealityV1 (RELOADED UI)/Configuration_adv.h b/config/examples/Creality/Ender-5 Plus/CrealityV1 (RELOADED UI)/Configuration_adv.h
index ce26b404c8f..95c365d021d 100644
--- a/config/examples/Creality/Ender-5 Plus/CrealityV1 (RELOADED UI)/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-5 Plus/CrealityV1 (RELOADED UI)/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4411,44 +4430,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4458,11 +4522,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4473,6 +4552,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4495,7 +4636,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR E3 Turbo/Configuration.h b/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR E3 Turbo/Configuration.h
index 03a95985c8d..47a4c97b50a 100644
--- a/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR E3 Turbo/Configuration.h	
+++ b/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR E3 Turbo/Configuration.h	
@@ -111,7 +111,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -390,14 +390,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1485,7 +1486,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1655,6 +1657,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1692,8 +1695,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR E3 Turbo/Configuration_adv.h b/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR E3 Turbo/Configuration_adv.h
index 23f48a4dddd..cdc8ce51e19 100644
--- a/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR E3 Turbo/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR E3 Turbo/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 1.2/Configuration.h b/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 1.2/Configuration.h
index 1e35289dc07..1f1bef0b621 100644
--- a/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 1.2/Configuration.h	
+++ b/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 1.2/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1476,7 +1477,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1646,6 +1648,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1683,8 +1686,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -2436,7 +2439,7 @@
 
 #define PREHEAT_2_LABEL       "PETG"
 #define PREHEAT_2_TEMP_HOTEND 230
-#define PREHEAT_2_TEMP_BED    80
+#define PREHEAT_2_TEMP_BED     80
 #define PREHEAT_2_TEMP_CHAMBER 35
 #define PREHEAT_2_FAN_SPEED   0 // Value from 0 to 255
 
diff --git a/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 1.2/Configuration_adv.h b/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 1.2/Configuration_adv.h
index 50418d7f653..b1f929422d0 100644
--- a/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 1.2/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 1.2/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 2.0 with BLTouch/Configuration.h b/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 2.0 with BLTouch/Configuration.h
index e26c02902ff..47302923206 100644
--- a/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 2.0 with BLTouch/Configuration.h	
+++ b/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 2.0 with BLTouch/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1908,7 +1911,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 2.0 with BLTouch/Configuration_adv.h b/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 2.0 with BLTouch/Configuration_adv.h
index e00bfb40a20..d329e82a81d 100644
--- a/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 2.0 with BLTouch/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 2.0 with BLTouch/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 3.0 with BLTouch-HighTemp/Configuration.h b/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 3.0 with BLTouch-HighTemp/Configuration.h
index c7c3a990969..a5472c0d2fa 100644
--- a/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 3.0 with BLTouch-HighTemp/Configuration.h	
+++ b/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 3.0 with BLTouch-HighTemp/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 3.0 with BLTouch-HighTemp/Configuration_adv.h b/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 3.0 with BLTouch-HighTemp/Configuration_adv.h
index 51d9553667e..4a5ac95f861 100644
--- a/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 3.0 with BLTouch-HighTemp/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-5 Pro/BigTreeTech SKR Mini E3 3.0 with BLTouch-HighTemp/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-5 Pro/CrealityV1/Configuration.h b/config/examples/Creality/Ender-5 Pro/CrealityV1/Configuration.h
index 473a317766b..b9e97e89f8c 100644
--- a/config/examples/Creality/Ender-5 Pro/CrealityV1/Configuration.h	
+++ b/config/examples/Creality/Ender-5 Pro/CrealityV1/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-5 Pro/CrealityV1/Configuration_adv.h b/config/examples/Creality/Ender-5 Pro/CrealityV1/Configuration_adv.h
index dadb9b13674..804d1b997ca 100644
--- a/config/examples/Creality/Ender-5 Pro/CrealityV1/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-5 Pro/CrealityV1/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-5 Pro/CrealityV422/Configuration.h b/config/examples/Creality/Ender-5 Pro/CrealityV422/Configuration.h
index 29e9532f404..0e0d9608283 100644
--- a/config/examples/Creality/Ender-5 Pro/CrealityV422/Configuration.h	
+++ b/config/examples/Creality/Ender-5 Pro/CrealityV422/Configuration.h	
@@ -111,7 +111,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -390,14 +390,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1491,7 +1492,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1661,6 +1663,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1698,8 +1701,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-5 Pro/CrealityV422/Configuration_adv.h b/config/examples/Creality/Ender-5 Pro/CrealityV422/Configuration_adv.h
index ec1d02a9737..e05820904d7 100644
--- a/config/examples/Creality/Ender-5 Pro/CrealityV422/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-5 Pro/CrealityV422/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-5 Pro/CrealityV427/Configuration.h b/config/examples/Creality/Ender-5 Pro/CrealityV427/Configuration.h
index a2d930b1b25..f3c2c89c939 100644
--- a/config/examples/Creality/Ender-5 Pro/CrealityV427/Configuration.h	
+++ b/config/examples/Creality/Ender-5 Pro/CrealityV427/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-5 Pro/CrealityV427/Configuration_adv.h b/config/examples/Creality/Ender-5 Pro/CrealityV427/Configuration_adv.h
index 577c48bf443..37d44de2147 100644
--- a/config/examples/Creality/Ender-5 Pro/CrealityV427/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-5 Pro/CrealityV427/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-5 S1/Configuration.h b/config/examples/Creality/Ender-5 S1/Configuration.h
index 8ff5bc89424..bb7b70d022f 100644
--- a/config/examples/Creality/Ender-5 S1/Configuration.h	
+++ b/config/examples/Creality/Ender-5 S1/Configuration.h	
@@ -124,7 +124,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -403,14 +403,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1508,7 +1509,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1683,6 +1685,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1720,8 +1723,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -2701,8 +2704,8 @@
  *
  * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cz':'Czech', 'da':'Danish', 'de':'German', 'el':'Greek (Greece)', 'el_CY':'Greek (Cyprus)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'hu':'Hungarian', 'it':'Italian', 'jp_kana':'Japanese', 'ko_KR':'Korean (South Korea)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt_br':'Portuguese (Brazilian)', 'ro':'Romanian', 'ru':'Russian', 'sk':'Slovak', 'sv':'Swedish', 'tr':'Turkish', 'uk':'Ukrainian', 'vi':'Vietnamese', 'zh_CN':'Chinese (Simplified)', 'zh_TW':'Chinese (Traditional)' }
  */
-#define LCD_LANGUAGE zh_CN
-#define LCD_LANGUAGE_2 en
+#define LCD_LANGUAGE en
+#define LCD_LANGUAGE_2 zh_CN
 
 /**
  * LCD Character Set
diff --git a/config/examples/Creality/Ender-5 S1/Configuration_adv.h b/config/examples/Creality/Ender-5 S1/Configuration_adv.h
index 2269c46571b..f71e1c439a7 100644
--- a/config/examples/Creality/Ender-5 S1/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-5 S1/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1085,9 +1085,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1108,19 +1110,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1130,8 +1135,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1184,7 +1189,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1497,8 +1502,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1515,6 +1529,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1529,8 +1547,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1561,6 +1577,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2569,7 +2588,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2583,7 +2602,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2717,7 +2736,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4416,44 +4435,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4463,11 +4527,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4478,6 +4557,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4500,7 +4641,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-5/BigTreeTech SKR E3 Turbo with BLTouch/Configuration.h b/config/examples/Creality/Ender-5/BigTreeTech SKR E3 Turbo with BLTouch/Configuration.h
index 61015dbfe90..949e2f23196 100644
--- a/config/examples/Creality/Ender-5/BigTreeTech SKR E3 Turbo with BLTouch/Configuration.h	
+++ b/config/examples/Creality/Ender-5/BigTreeTech SKR E3 Turbo with BLTouch/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-5/BigTreeTech SKR E3 Turbo with BLTouch/Configuration_adv.h b/config/examples/Creality/Ender-5/BigTreeTech SKR E3 Turbo with BLTouch/Configuration_adv.h
index 23f48a4dddd..cdc8ce51e19 100644
--- a/config/examples/Creality/Ender-5/BigTreeTech SKR E3 Turbo with BLTouch/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-5/BigTreeTech SKR E3 Turbo with BLTouch/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-5/BigTreeTech SKR E3 Turbo/Configuration.h b/config/examples/Creality/Ender-5/BigTreeTech SKR E3 Turbo/Configuration.h
index 5929253413c..6a589f7dc69 100644
--- a/config/examples/Creality/Ender-5/BigTreeTech SKR E3 Turbo/Configuration.h	
+++ b/config/examples/Creality/Ender-5/BigTreeTech SKR E3 Turbo/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-5/BigTreeTech SKR E3 Turbo/Configuration_adv.h b/config/examples/Creality/Ender-5/BigTreeTech SKR E3 Turbo/Configuration_adv.h
index af1c831aae1..4c6c92d18cb 100644
--- a/config/examples/Creality/Ender-5/BigTreeTech SKR E3 Turbo/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-5/BigTreeTech SKR E3 Turbo/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-5/BigTreeTech SKR Mini E3 1.2/Configuration.h b/config/examples/Creality/Ender-5/BigTreeTech SKR Mini E3 1.2/Configuration.h
index 80f2dec5c31..07b7368f85c 100644
--- a/config/examples/Creality/Ender-5/BigTreeTech SKR Mini E3 1.2/Configuration.h	
+++ b/config/examples/Creality/Ender-5/BigTreeTech SKR Mini E3 1.2/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1476,7 +1477,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1646,6 +1648,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1683,8 +1686,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-5/BigTreeTech SKR Mini E3 1.2/Configuration_adv.h b/config/examples/Creality/Ender-5/BigTreeTech SKR Mini E3 1.2/Configuration_adv.h
index 625632fe829..1ea39361a6c 100644
--- a/config/examples/Creality/Ender-5/BigTreeTech SKR Mini E3 1.2/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-5/BigTreeTech SKR Mini E3 1.2/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-5/BigTreeTech SKR Mini E3 2.0/Configuration.h b/config/examples/Creality/Ender-5/BigTreeTech SKR Mini E3 2.0/Configuration.h
index 9f7ed85663a..84a0c9eebd0 100644
--- a/config/examples/Creality/Ender-5/BigTreeTech SKR Mini E3 2.0/Configuration.h	
+++ b/config/examples/Creality/Ender-5/BigTreeTech SKR Mini E3 2.0/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1476,7 +1477,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1646,6 +1648,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1683,8 +1686,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -2436,7 +2439,7 @@
 
 #define PREHEAT_2_LABEL       "PETG"
 #define PREHEAT_2_TEMP_HOTEND 235
-#define PREHEAT_2_TEMP_BED    80
+#define PREHEAT_2_TEMP_BED     80
 #define PREHEAT_2_TEMP_CHAMBER 35
 #define PREHEAT_2_FAN_SPEED   255 // Value from 0 to 255
 
diff --git a/config/examples/Creality/Ender-5/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h b/config/examples/Creality/Ender-5/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h
index 842b5a3b688..f2cb75a3a6a 100644
--- a/config/examples/Creality/Ender-5/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-5/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-5/BigTreeTech SKR Mini E3 3.0 with BLTouch/Configuration.h b/config/examples/Creality/Ender-5/BigTreeTech SKR Mini E3 3.0 with BLTouch/Configuration.h
index 331bce2e83b..cb8cde2e415 100644
--- a/config/examples/Creality/Ender-5/BigTreeTech SKR Mini E3 3.0 with BLTouch/Configuration.h	
+++ b/config/examples/Creality/Ender-5/BigTreeTech SKR Mini E3 3.0 with BLTouch/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-5/BigTreeTech SKR Mini E3 3.0 with BLTouch/Configuration_adv.h b/config/examples/Creality/Ender-5/BigTreeTech SKR Mini E3 3.0 with BLTouch/Configuration_adv.h
index 22e43de850b..bfcee6b900a 100644
--- a/config/examples/Creality/Ender-5/BigTreeTech SKR Mini E3 3.0 with BLTouch/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-5/BigTreeTech SKR Mini E3 3.0 with BLTouch/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-5/Creality free-runs/Configuration.h b/config/examples/Creality/Ender-5/Creality free-runs/Configuration.h
index 3af7e513f87..1c8cd649b30 100644
--- a/config/examples/Creality/Ender-5/Creality free-runs/Configuration.h	
+++ b/config/examples/Creality/Ender-5/Creality free-runs/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-5/Creality free-runs/Configuration_adv.h b/config/examples/Creality/Ender-5/Creality free-runs/Configuration_adv.h
index 6f081487488..d52b1ca3e03 100644
--- a/config/examples/Creality/Ender-5/Creality free-runs/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-5/Creality free-runs/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-5/CrealityV1/Configuration.h b/config/examples/Creality/Ender-5/CrealityV1/Configuration.h
index 23171408fbd..bd5ca05f916 100644
--- a/config/examples/Creality/Ender-5/CrealityV1/Configuration.h
+++ b/config/examples/Creality/Ender-5/CrealityV1/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-5/CrealityV1/Configuration_adv.h b/config/examples/Creality/Ender-5/CrealityV1/Configuration_adv.h
index e2eedce9805..28aacc5d259 100644
--- a/config/examples/Creality/Ender-5/CrealityV1/Configuration_adv.h
+++ b/config/examples/Creality/Ender-5/CrealityV1/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-5/CrealityV427 with BLTouch/Configuration.h b/config/examples/Creality/Ender-5/CrealityV427 with BLTouch/Configuration.h
index 3f8928eedd3..5ca45f73e63 100644
--- a/config/examples/Creality/Ender-5/CrealityV427 with BLTouch/Configuration.h	
+++ b/config/examples/Creality/Ender-5/CrealityV427 with BLTouch/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-5/CrealityV427 with BLTouch/Configuration_adv.h b/config/examples/Creality/Ender-5/CrealityV427 with BLTouch/Configuration_adv.h
index dae2872eb73..2bef6c109a8 100644
--- a/config/examples/Creality/Ender-5/CrealityV427 with BLTouch/Configuration_adv.h	
+++ b/config/examples/Creality/Ender-5/CrealityV427 with BLTouch/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-5/CrealityV427/Configuration.h b/config/examples/Creality/Ender-5/CrealityV427/Configuration.h
index 896715fc6e7..729f1c2400f 100644
--- a/config/examples/Creality/Ender-5/CrealityV427/Configuration.h
+++ b/config/examples/Creality/Ender-5/CrealityV427/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-5/CrealityV427/Configuration_adv.h b/config/examples/Creality/Ender-5/CrealityV427/Configuration_adv.h
index 403b57f0ca5..ef068451cdb 100644
--- a/config/examples/Creality/Ender-5/CrealityV427/Configuration_adv.h
+++ b/config/examples/Creality/Ender-5/CrealityV427/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Creality/Ender-6/Configuration.h b/config/examples/Creality/Ender-6/Configuration.h
index 3a959667514..23023f65a40 100644
--- a/config/examples/Creality/Ender-6/Configuration.h
+++ b/config/examples/Creality/Ender-6/Configuration.h
@@ -111,7 +111,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -390,14 +390,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1484,7 +1485,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1654,6 +1656,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1691,8 +1694,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Creality/Ender-6/Configuration_adv.h b/config/examples/Creality/Ender-6/Configuration_adv.h
index 12c7cab247f..2dc80ea2abd 100644
--- a/config/examples/Creality/Ender-6/Configuration_adv.h
+++ b/config/examples/Creality/Ender-6/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Dagoma/Disco Ultimate/Configuration.h b/config/examples/Dagoma/Disco Ultimate/Configuration.h
index 7cb84458e73..ad17eb02d17 100644
--- a/config/examples/Dagoma/Disco Ultimate/Configuration.h	
+++ b/config/examples/Dagoma/Disco Ultimate/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Dagoma/Disco Ultimate/Configuration_adv.h b/config/examples/Dagoma/Disco Ultimate/Configuration_adv.h
index d7f91344d4c..0478a2d5e5c 100644
--- a/config/examples/Dagoma/Disco Ultimate/Configuration_adv.h	
+++ b/config/examples/Dagoma/Disco Ultimate/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   #define ADAPTIVE_FAN_SLOWING                // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2279,7 +2298,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Daycom/3DP-100/Configuration.h b/config/examples/Daycom/3DP-100/Configuration.h
index 01e66bc6db7..f8d998988d3 100644
--- a/config/examples/Daycom/3DP-100/Configuration.h
+++ b/config/examples/Daycom/3DP-100/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -390,14 +390,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1481,7 +1482,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1651,6 +1653,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1688,8 +1691,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Daycom/3DP-100/Configuration_adv.h b/config/examples/Daycom/3DP-100/Configuration_adv.h
index 948313fb230..76b0ff75aa2 100644
--- a/config/examples/Daycom/3DP-100/Configuration_adv.h
+++ b/config/examples/Daycom/3DP-100/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/EXP3D/Imprimante multifonction/Configuration.h b/config/examples/EXP3D/Imprimante multifonction/Configuration.h
index eedd06c208c..54aed6335cc 100644
--- a/config/examples/EXP3D/Imprimante multifonction/Configuration.h	
+++ b/config/examples/EXP3D/Imprimante multifonction/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    4 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  4 // (mm) Z Clearance between probe points
@@ -1907,7 +1910,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
@@ -2435,7 +2438,7 @@
 
 #define PREHEAT_2_LABEL       "ABS"
 #define PREHEAT_2_TEMP_HOTEND 250
-#define PREHEAT_2_TEMP_BED    70
+#define PREHEAT_2_TEMP_BED     70
 #define PREHEAT_2_TEMP_CHAMBER 35
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
diff --git a/config/examples/EXP3D/Imprimante multifonction/Configuration_adv.h b/config/examples/EXP3D/Imprimante multifonction/Configuration_adv.h
index 48a002f954b..947a71232a9 100644
--- a/config/examples/EXP3D/Imprimante multifonction/Configuration_adv.h	
+++ b/config/examples/EXP3D/Imprimante multifonction/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 60        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 5     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        60 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     5 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   #define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2279,7 +2298,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 2000   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4409,44 +4428,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4456,11 +4520,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4471,6 +4550,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4493,7 +4634,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/EasyThreeD/ET4000PLUS/Configuration.h b/config/examples/EasyThreeD/ET4000PLUS/Configuration.h
index 7db3f295d80..8a1a826966b 100644
--- a/config/examples/EasyThreeD/ET4000PLUS/Configuration.h
+++ b/config/examples/EasyThreeD/ET4000PLUS/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/EasyThreeD/ET4000PLUS/Configuration_adv.h b/config/examples/EasyThreeD/ET4000PLUS/Configuration_adv.h
index 712e81bc49f..10ecd09eabf 100644
--- a/config/examples/EasyThreeD/ET4000PLUS/Configuration_adv.h
+++ b/config/examples/EasyThreeD/ET4000PLUS/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4414,44 +4433,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4461,11 +4525,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4476,6 +4555,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4498,7 +4639,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Eazao/Zero/Configuration.h b/config/examples/Eazao/Zero/Configuration.h
index 4913859dbe0..fac70b73332 100644
--- a/config/examples/Eazao/Zero/Configuration.h
+++ b/config/examples/Eazao/Zero/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Eazao/Zero/Configuration_adv.h b/config/examples/Eazao/Zero/Configuration_adv.h
index 991dea6e060..9d9ac8f250c 100644
--- a/config/examples/Eazao/Zero/Configuration_adv.h
+++ b/config/examples/Eazao/Zero/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Einstart-S/Configuration.h b/config/examples/Einstart-S/Configuration.h
index 9c5aaecb03e..8aafb75aa1e 100644
--- a/config/examples/Einstart-S/Configuration.h
+++ b/config/examples/Einstart-S/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1482,7 +1483,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1652,6 +1654,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1689,8 +1692,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Einstart-S/Configuration_adv.h b/config/examples/Einstart-S/Configuration_adv.h
index 6d21fc3431a..662ed8d990b 100644
--- a/config/examples/Einstart-S/Configuration_adv.h
+++ b/config/examples/Einstart-S/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Elegoo/Neptune 2/Configuration.h b/config/examples/Elegoo/Neptune 2/Configuration.h
index b5ccd679397..796bca2791a 100644
--- a/config/examples/Elegoo/Neptune 2/Configuration.h	
+++ b/config/examples/Elegoo/Neptune 2/Configuration.h	
@@ -131,7 +131,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -420,14 +420,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1533,7 +1534,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1703,6 +1705,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1740,8 +1743,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Elegoo/Neptune 2/Configuration_adv.h b/config/examples/Elegoo/Neptune 2/Configuration_adv.h
index 96176e50c7d..29afb55ab83 100644
--- a/config/examples/Elegoo/Neptune 2/Configuration_adv.h	
+++ b/config/examples/Elegoo/Neptune 2/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4414,44 +4433,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4461,11 +4525,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4476,6 +4555,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4498,7 +4639,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Eryone/Thinker SE/Configuration.h b/config/examples/Eryone/Thinker SE/Configuration.h
index ee3665bbc3e..991ac613553 100644
--- a/config/examples/Eryone/Thinker SE/Configuration.h	
+++ b/config/examples/Eryone/Thinker SE/Configuration.h	
@@ -112,7 +112,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -395,14 +395,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1499,7 +1500,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1670,6 +1672,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1707,8 +1710,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Eryone/Thinker SE/Configuration_adv.h b/config/examples/Eryone/Thinker SE/Configuration_adv.h
index f9211c4343b..7f2b242af58 100644
--- a/config/examples/Eryone/Thinker SE/Configuration_adv.h	
+++ b/config/examples/Eryone/Thinker SE/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2719,7 +2738,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4418,44 +4437,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4465,11 +4529,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4480,6 +4559,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4502,7 +4643,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Eryone/Thinker V2/Configuration.h b/config/examples/Eryone/Thinker V2/Configuration.h
index 5fe3fdd87f3..624f5778437 100644
--- a/config/examples/Eryone/Thinker V2/Configuration.h	
+++ b/config/examples/Eryone/Thinker V2/Configuration.h	
@@ -112,7 +112,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -395,14 +395,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1501,7 +1502,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1671,6 +1673,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1708,8 +1711,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Eryone/Thinker V2/Configuration_adv.h b/config/examples/Eryone/Thinker V2/Configuration_adv.h
index 6eba560fd05..38e0d433ebf 100644
--- a/config/examples/Eryone/Thinker V2/Configuration_adv.h	
+++ b/config/examples/Eryone/Thinker V2/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2719,7 +2738,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4418,44 +4437,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4465,11 +4529,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4480,6 +4559,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4502,7 +4643,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/FYSETC/AIO_II/Configuration.h b/config/examples/FYSETC/AIO_II/Configuration.h
index 775235cf8bd..794646d9961 100644
--- a/config/examples/FYSETC/AIO_II/Configuration.h
+++ b/config/examples/FYSETC/AIO_II/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/FYSETC/AIO_II/Configuration_adv.h b/config/examples/FYSETC/AIO_II/Configuration_adv.h
index 9f8b692f0e5..8a0e0229990 100644
--- a/config/examples/FYSETC/AIO_II/Configuration_adv.h
+++ b/config/examples/FYSETC/AIO_II/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/FYSETC/F6_13/Configuration.h b/config/examples/FYSETC/F6_13/Configuration.h
index bd3cd0e806c..6e9420b678d 100644
--- a/config/examples/FYSETC/F6_13/Configuration.h
+++ b/config/examples/FYSETC/F6_13/Configuration.h
@@ -110,7 +110,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -389,14 +389,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1479,7 +1480,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1649,6 +1651,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1686,8 +1689,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/FYSETC/F6_13/Configuration_adv.h b/config/examples/FYSETC/F6_13/Configuration_adv.h
index dbb244e4704..5cc8771f026 100644
--- a/config/examples/FYSETC/F6_13/Configuration_adv.h
+++ b/config/examples/FYSETC/F6_13/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/FYSETC/S6/Configuration.h b/config/examples/FYSETC/S6/Configuration.h
index 1aed5d6ea84..cbf72eda9f5 100644
--- a/config/examples/FYSETC/S6/Configuration.h
+++ b/config/examples/FYSETC/S6/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/FYSETC/S6/Configuration_adv.h b/config/examples/FYSETC/S6/Configuration_adv.h
index ad9ea04fa71..db781197a68 100644
--- a/config/examples/FYSETC/S6/Configuration_adv.h
+++ b/config/examples/FYSETC/S6/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Felix/DUAL/Configuration.h b/config/examples/Felix/DUAL/Configuration.h
index 9aff825c173..22a30206ce3 100644
--- a/config/examples/Felix/DUAL/Configuration.h
+++ b/config/examples/Felix/DUAL/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Felix/DUAL/Configuration_adv.h b/config/examples/Felix/DUAL/Configuration_adv.h
index dbda7c1c057..79f206a6b5e 100644
--- a/config/examples/Felix/DUAL/Configuration_adv.h
+++ b/config/examples/Felix/DUAL/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Felix/Single/Configuration.h b/config/examples/Felix/Single/Configuration.h
index 3f4ec424e99..d6f5d38ed22 100644
--- a/config/examples/Felix/Single/Configuration.h
+++ b/config/examples/Felix/Single/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Felix/Single/Configuration_adv.h b/config/examples/Felix/Single/Configuration_adv.h
index dbda7c1c057..79f206a6b5e 100644
--- a/config/examples/Felix/Single/Configuration_adv.h
+++ b/config/examples/Felix/Single/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/FlashForge/Creator 2X/Configuration.h b/config/examples/FlashForge/Creator 2X/Configuration.h
index 647846fff4f..ee248fe427c 100644
--- a/config/examples/FlashForge/Creator 2X/Configuration.h	
+++ b/config/examples/FlashForge/Creator 2X/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/FlashForge/Creator 2X/Configuration_adv.h b/config/examples/FlashForge/Creator 2X/Configuration_adv.h
index a6c3d0a9c6b..62e98de31ca 100644
--- a/config/examples/FlashForge/Creator 2X/Configuration_adv.h	
+++ b/config/examples/FlashForge/Creator 2X/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/FlashForge/CreatorPro/Configuration.h b/config/examples/FlashForge/CreatorPro/Configuration.h
index dc81d3716cd..d3f43bf158d 100644
--- a/config/examples/FlashForge/CreatorPro/Configuration.h
+++ b/config/examples/FlashForge/CreatorPro/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/FlashForge/CreatorPro/Configuration_adv.h b/config/examples/FlashForge/CreatorPro/Configuration_adv.h
index 086ec321105..2d9329280ca 100644
--- a/config/examples/FlashForge/CreatorPro/Configuration_adv.h
+++ b/config/examples/FlashForge/CreatorPro/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/FlyingBear/P902/Configuration.h b/config/examples/FlyingBear/P902/Configuration.h
index dc1edee2fc4..e798bd09db6 100644
--- a/config/examples/FlyingBear/P902/Configuration.h
+++ b/config/examples/FlyingBear/P902/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/FlyingBear/P902/Configuration_adv.h b/config/examples/FlyingBear/P902/Configuration_adv.h
index 47eeb00a39b..096e2759b7d 100644
--- a/config/examples/FlyingBear/P902/Configuration_adv.h
+++ b/config/examples/FlyingBear/P902/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/FlyingBear/P905H/Configuration.h b/config/examples/FlyingBear/P905H/Configuration.h
index 77df6aeb9cc..23634673901 100644
--- a/config/examples/FlyingBear/P905H/Configuration.h
+++ b/config/examples/FlyingBear/P905H/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1481,7 +1482,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1651,6 +1653,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1688,8 +1691,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1912,7 +1915,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/FlyingBear/P905H/Configuration_adv.h b/config/examples/FlyingBear/P905H/Configuration_adv.h
index d11e621bc8c..202efcc11ec 100644
--- a/config/examples/FlyingBear/P905H/Configuration_adv.h
+++ b/config/examples/FlyingBear/P905H/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2716,7 +2735,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4415,44 +4434,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4462,11 +4526,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4477,6 +4556,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4499,7 +4640,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/FoamCutter/generic/Configuration.h b/config/examples/FoamCutter/generic/Configuration.h
index 80fb53983d2..2ea28157158 100644
--- a/config/examples/FoamCutter/generic/Configuration.h
+++ b/config/examples/FoamCutter/generic/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/FoamCutter/generic/Configuration_adv.h b/config/examples/FoamCutter/generic/Configuration_adv.h
index 88cf3d5bdea..13719f5777e 100644
--- a/config/examples/FoamCutter/generic/Configuration_adv.h
+++ b/config/examples/FoamCutter/generic/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4420,44 +4439,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4467,11 +4531,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4482,6 +4561,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4504,7 +4645,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/FoamCutter/rcKeith/Configuration.h b/config/examples/FoamCutter/rcKeith/Configuration.h
index 25b501f3039..f41cdba027c 100644
--- a/config/examples/FoamCutter/rcKeith/Configuration.h
+++ b/config/examples/FoamCutter/rcKeith/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/FoamCutter/rcKeith/Configuration_adv.h b/config/examples/FoamCutter/rcKeith/Configuration_adv.h
index 88cf3d5bdea..13719f5777e 100644
--- a/config/examples/FoamCutter/rcKeith/Configuration_adv.h
+++ b/config/examples/FoamCutter/rcKeith/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4420,44 +4439,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4467,11 +4531,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4482,6 +4561,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4504,7 +4645,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/FolgerTech/FT-5 R2/Configuration.h b/config/examples/FolgerTech/FT-5 R2/Configuration.h
index 78aa97c4197..b2828cd2dbd 100644
--- a/config/examples/FolgerTech/FT-5 R2/Configuration.h	
+++ b/config/examples/FolgerTech/FT-5 R2/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1474,7 +1475,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1644,6 +1646,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1681,8 +1684,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/FolgerTech/FT-5 R2/Configuration_adv.h b/config/examples/FolgerTech/FT-5 R2/Configuration_adv.h
index 303a6cdb2f0..2f763515981 100644
--- a/config/examples/FolgerTech/FT-5 R2/Configuration_adv.h	
+++ b/config/examples/FolgerTech/FT-5 R2/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/FolgerTech/i3-2020/Configuration.h b/config/examples/FolgerTech/i3-2020/Configuration.h
index 5daf359867c..e54d1ff5bf0 100644
--- a/config/examples/FolgerTech/i3-2020/Configuration.h
+++ b/config/examples/FolgerTech/i3-2020/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1479,7 +1480,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1649,6 +1651,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1686,8 +1689,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    3 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  3 // (mm) Z Clearance between probe points
diff --git a/config/examples/FolgerTech/i3-2020/Configuration_adv.h b/config/examples/FolgerTech/i3-2020/Configuration_adv.h
index f23e7481f12..ed5cba3f9e0 100644
--- a/config/examples/FolgerTech/i3-2020/Configuration_adv.h
+++ b/config/examples/FolgerTech/i3-2020/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 2     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     2 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4420,44 +4439,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4467,11 +4531,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4482,6 +4561,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4504,7 +4645,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Formbot/Raptor/Configuration.h b/config/examples/Formbot/Raptor/Configuration.h
index b9231fdb85f..2ec8b117e5f 100644
--- a/config/examples/Formbot/Raptor/Configuration.h
+++ b/config/examples/Formbot/Raptor/Configuration.h
@@ -151,7 +151,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -430,14 +430,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1568,7 +1569,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1738,6 +1740,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1775,8 +1778,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    5 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -2011,7 +2014,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Formbot/Raptor/Configuration_adv.h b/config/examples/Formbot/Raptor/Configuration_adv.h
index 3c20d94b5ae..5b63ee19cf0 100644
--- a/config/examples/Formbot/Raptor/Configuration_adv.h
+++ b/config/examples/Formbot/Raptor/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 210       // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 2     // (°C)
+  #define THERMAL_PROTECTION_PERIOD       210 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     2 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2715,7 +2734,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4417,44 +4436,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4464,11 +4528,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4479,6 +4558,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4501,7 +4642,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/A10/Configuration.h b/config/examples/Geeetech/A10/Configuration.h
index 53aab836b41..90f0510df1b 100644
--- a/config/examples/Geeetech/A10/Configuration.h
+++ b/config/examples/Geeetech/A10/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    5 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  3 // (mm) Z Clearance between probe points
diff --git a/config/examples/Geeetech/A10/Configuration_adv.h b/config/examples/Geeetech/A10/Configuration_adv.h
index 4fa22dddcbd..09743ef753c 100644
--- a/config/examples/Geeetech/A10/Configuration_adv.h
+++ b/config/examples/Geeetech/A10/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/A10D/Configuration.h b/config/examples/Geeetech/A10D/Configuration.h
index bd2bafbf8d6..f4fe09eb406 100644
--- a/config/examples/Geeetech/A10D/Configuration.h
+++ b/config/examples/Geeetech/A10D/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1476,7 +1477,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1646,6 +1648,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1683,8 +1686,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    5 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  3 // (mm) Z Clearance between probe points
diff --git a/config/examples/Geeetech/A10D/Configuration_adv.h b/config/examples/Geeetech/A10D/Configuration_adv.h
index d91eeb5e14b..2e61c77b71a 100644
--- a/config/examples/Geeetech/A10D/Configuration_adv.h
+++ b/config/examples/Geeetech/A10D/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/A10M/Stock LCD/Configuration.h b/config/examples/Geeetech/A10M/Stock LCD/Configuration.h
index 3dbccf97e01..5e2bd11c36c 100644
--- a/config/examples/Geeetech/A10M/Stock LCD/Configuration.h	
+++ b/config/examples/Geeetech/A10M/Stock LCD/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    5 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  3 // (mm) Z Clearance between probe points
diff --git a/config/examples/Geeetech/A10M/Stock LCD/Configuration_adv.h b/config/examples/Geeetech/A10M/Stock LCD/Configuration_adv.h
index 2bd17cef6ec..e5488766d97 100644
--- a/config/examples/Geeetech/A10M/Stock LCD/Configuration_adv.h	
+++ b/config/examples/Geeetech/A10M/Stock LCD/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/A10M/YHCB2004_V4.1/Configuration.h b/config/examples/Geeetech/A10M/YHCB2004_V4.1/Configuration.h
index 4357e6262a2..7e823045d58 100644
--- a/config/examples/Geeetech/A10M/YHCB2004_V4.1/Configuration.h
+++ b/config/examples/Geeetech/A10M/YHCB2004_V4.1/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    5 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  3 // (mm) Z Clearance between probe points
diff --git a/config/examples/Geeetech/A10M/YHCB2004_V4.1/Configuration_adv.h b/config/examples/Geeetech/A10M/YHCB2004_V4.1/Configuration_adv.h
index 2bd17cef6ec..e5488766d97 100644
--- a/config/examples/Geeetech/A10M/YHCB2004_V4.1/Configuration_adv.h
+++ b/config/examples/Geeetech/A10M/YHCB2004_V4.1/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/A10PRO/Configuration.h b/config/examples/Geeetech/A10PRO/Configuration.h
index a10a6a81eb7..fa2310da631 100644
--- a/config/examples/Geeetech/A10PRO/Configuration.h
+++ b/config/examples/Geeetech/A10PRO/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    5 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  3 // (mm) Z Clearance between probe points
diff --git a/config/examples/Geeetech/A10PRO/Configuration_adv.h b/config/examples/Geeetech/A10PRO/Configuration_adv.h
index 4fa22dddcbd..09743ef753c 100644
--- a/config/examples/Geeetech/A10PRO/Configuration_adv.h
+++ b/config/examples/Geeetech/A10PRO/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/A10T/Stock LCD/Configuration.h b/config/examples/Geeetech/A10T/Stock LCD/Configuration.h
index afd32bf679f..ad10401a42e 100644
--- a/config/examples/Geeetech/A10T/Stock LCD/Configuration.h	
+++ b/config/examples/Geeetech/A10T/Stock LCD/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    5 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  3 // (mm) Z Clearance between probe points
diff --git a/config/examples/Geeetech/A10T/Stock LCD/Configuration_adv.h b/config/examples/Geeetech/A10T/Stock LCD/Configuration_adv.h
index 2bd17cef6ec..e5488766d97 100644
--- a/config/examples/Geeetech/A10T/Stock LCD/Configuration_adv.h	
+++ b/config/examples/Geeetech/A10T/Stock LCD/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/A10T/YHCB2004_V4.1/Configuration.h b/config/examples/Geeetech/A10T/YHCB2004_V4.1/Configuration.h
index 763a22077ac..052ea54b95b 100644
--- a/config/examples/Geeetech/A10T/YHCB2004_V4.1/Configuration.h
+++ b/config/examples/Geeetech/A10T/YHCB2004_V4.1/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    5 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  3 // (mm) Z Clearance between probe points
diff --git a/config/examples/Geeetech/A10T/YHCB2004_V4.1/Configuration_adv.h b/config/examples/Geeetech/A10T/YHCB2004_V4.1/Configuration_adv.h
index 2bd17cef6ec..e5488766d97 100644
--- a/config/examples/Geeetech/A10T/YHCB2004_V4.1/Configuration_adv.h
+++ b/config/examples/Geeetech/A10T/YHCB2004_V4.1/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/A20/Configuration.h b/config/examples/Geeetech/A20/Configuration.h
index 3a8e39dd048..9fc299c358d 100644
--- a/config/examples/Geeetech/A20/Configuration.h
+++ b/config/examples/Geeetech/A20/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    5 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  3 // (mm) Z Clearance between probe points
diff --git a/config/examples/Geeetech/A20/Configuration_adv.h b/config/examples/Geeetech/A20/Configuration_adv.h
index 8a12254b403..ba91e4600b2 100644
--- a/config/examples/Geeetech/A20/Configuration_adv.h
+++ b/config/examples/Geeetech/A20/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2289,7 +2308,7 @@
     #endif
   #endif
 
-  #define BABYSTEP_DISPLAY_TOTAL          // Display total babysteps since last G28
+  #define BABYSTEP_DISPLAY_TOTAL            // Display total babysteps since last G28
 
   //#define BABYSTEP_ZPROBE_OFFSET          // Combine M851 Z and Babystepping
   //#define BABYSTEP_GLOBAL_Z               // Combine M424 Z and Babystepping
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/A20M/Configuration.h b/config/examples/Geeetech/A20M/Configuration.h
index 06c6cd918b0..6dcaa6edfbc 100644
--- a/config/examples/Geeetech/A20M/Configuration.h
+++ b/config/examples/Geeetech/A20M/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    5 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  3 // (mm) Z Clearance between probe points
diff --git a/config/examples/Geeetech/A20M/Configuration_adv.h b/config/examples/Geeetech/A20M/Configuration_adv.h
index 8a12254b403..ba91e4600b2 100644
--- a/config/examples/Geeetech/A20M/Configuration_adv.h
+++ b/config/examples/Geeetech/A20M/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2289,7 +2308,7 @@
     #endif
   #endif
 
-  #define BABYSTEP_DISPLAY_TOTAL          // Display total babysteps since last G28
+  #define BABYSTEP_DISPLAY_TOTAL            // Display total babysteps since last G28
 
   //#define BABYSTEP_ZPROBE_OFFSET          // Combine M851 Z and Babystepping
   //#define BABYSTEP_GLOBAL_Z               // Combine M424 Z and Babystepping
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/A20T/Configuration.h b/config/examples/Geeetech/A20T/Configuration.h
index aa999fcedd6..99f2db87dc6 100644
--- a/config/examples/Geeetech/A20T/Configuration.h
+++ b/config/examples/Geeetech/A20T/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    5 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  3 // (mm) Z Clearance between probe points
diff --git a/config/examples/Geeetech/A20T/Configuration_adv.h b/config/examples/Geeetech/A20T/Configuration_adv.h
index 8a12254b403..ba91e4600b2 100644
--- a/config/examples/Geeetech/A20T/Configuration_adv.h
+++ b/config/examples/Geeetech/A20T/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2289,7 +2308,7 @@
     #endif
   #endif
 
-  #define BABYSTEP_DISPLAY_TOTAL          // Display total babysteps since last G28
+  #define BABYSTEP_DISPLAY_TOTAL            // Display total babysteps since last G28
 
   //#define BABYSTEP_ZPROBE_OFFSET          // Combine M851 Z and Babystepping
   //#define BABYSTEP_GLOBAL_Z               // Combine M424 Z and Babystepping
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/A30/Configuration.h b/config/examples/Geeetech/A30/Configuration.h
index c8b9eef9ca3..c14e6967d5c 100644
--- a/config/examples/Geeetech/A30/Configuration.h
+++ b/config/examples/Geeetech/A30/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1475,7 +1476,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1645,6 +1647,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1682,8 +1685,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1905,7 +1908,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Geeetech/A30/Configuration_adv.h b/config/examples/Geeetech/A30/Configuration_adv.h
index c1ef8bcd82d..43e46739231 100644
--- a/config/examples/Geeetech/A30/Configuration_adv.h
+++ b/config/examples/Geeetech/A30/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2279,7 +2298,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 2000   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4411,44 +4430,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4458,11 +4522,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4473,6 +4552,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4495,7 +4636,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/A30M/Configuration.h b/config/examples/Geeetech/A30M/Configuration.h
index cbc329cf311..562d53fd348 100644
--- a/config/examples/Geeetech/A30M/Configuration.h
+++ b/config/examples/Geeetech/A30M/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1475,7 +1476,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1645,6 +1647,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1682,8 +1685,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1905,7 +1908,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Geeetech/A30M/Configuration_adv.h b/config/examples/Geeetech/A30M/Configuration_adv.h
index c1ef8bcd82d..43e46739231 100644
--- a/config/examples/Geeetech/A30M/Configuration_adv.h
+++ b/config/examples/Geeetech/A30M/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2279,7 +2298,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 2000   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4411,44 +4430,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4458,11 +4522,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4473,6 +4552,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4495,7 +4636,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/A30T/Configuration.h b/config/examples/Geeetech/A30T/Configuration.h
index 240978bc723..539ecfd8f99 100644
--- a/config/examples/Geeetech/A30T/Configuration.h
+++ b/config/examples/Geeetech/A30T/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1475,7 +1476,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1645,6 +1647,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1682,8 +1685,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1905,7 +1908,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Geeetech/A30T/Configuration_adv.h b/config/examples/Geeetech/A30T/Configuration_adv.h
index c1ef8bcd82d..43e46739231 100644
--- a/config/examples/Geeetech/A30T/Configuration_adv.h
+++ b/config/examples/Geeetech/A30T/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2279,7 +2298,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 2000   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4411,44 +4430,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4458,11 +4522,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4473,6 +4552,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4495,7 +4636,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/D200/Configuration.h b/config/examples/Geeetech/D200/Configuration.h
index 58e1f8980df..9bac4b97b17 100644
--- a/config/examples/Geeetech/D200/Configuration.h
+++ b/config/examples/Geeetech/D200/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1475,7 +1476,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1645,6 +1647,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1682,8 +1685,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1905,7 +1908,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Geeetech/D200/Configuration_adv.h b/config/examples/Geeetech/D200/Configuration_adv.h
index 502cc0d02d3..2bd86ca20ef 100644
--- a/config/examples/Geeetech/D200/Configuration_adv.h
+++ b/config/examples/Geeetech/D200/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2279,7 +2298,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 2000   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/Duplicator5/Configuration.h b/config/examples/Geeetech/Duplicator5/Configuration.h
index 09760c7b25e..37270acb1e6 100644
--- a/config/examples/Geeetech/Duplicator5/Configuration.h
+++ b/config/examples/Geeetech/Duplicator5/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Geeetech/Duplicator5/Configuration_adv.h b/config/examples/Geeetech/Duplicator5/Configuration_adv.h
index ad9ea04fa71..db781197a68 100644
--- a/config/examples/Geeetech/Duplicator5/Configuration_adv.h
+++ b/config/examples/Geeetech/Duplicator5/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/E180/Configuration.h b/config/examples/Geeetech/E180/Configuration.h
index b859d2303a2..e6fb8f7ad3e 100644
--- a/config/examples/Geeetech/E180/Configuration.h
+++ b/config/examples/Geeetech/E180/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1476,7 +1477,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1646,6 +1648,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1683,8 +1686,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1906,7 +1909,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Geeetech/E180/Configuration_adv.h b/config/examples/Geeetech/E180/Configuration_adv.h
index c1ef8bcd82d..43e46739231 100644
--- a/config/examples/Geeetech/E180/Configuration_adv.h
+++ b/config/examples/Geeetech/E180/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2279,7 +2298,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 2000   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4411,44 +4430,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4458,11 +4522,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4473,6 +4552,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4495,7 +4636,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/GT2560/Configuration.h b/config/examples/Geeetech/GT2560/Configuration.h
index 99f447c1448..fc01c3b55d3 100644
--- a/config/examples/Geeetech/GT2560/Configuration.h
+++ b/config/examples/Geeetech/GT2560/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1482,7 +1483,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1652,6 +1654,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1689,8 +1692,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Geeetech/GT2560/Configuration_adv.h b/config/examples/Geeetech/GT2560/Configuration_adv.h
index df3e109acdc..196ebfa29c4 100644
--- a/config/examples/Geeetech/GT2560/Configuration_adv.h
+++ b/config/examples/Geeetech/GT2560/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/I3_Pro_X-GT2560/Configuration.h b/config/examples/Geeetech/I3_Pro_X-GT2560/Configuration.h
index dca6c5afb25..b09ad48615c 100644
--- a/config/examples/Geeetech/I3_Pro_X-GT2560/Configuration.h
+++ b/config/examples/Geeetech/I3_Pro_X-GT2560/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  6 // (mm) Z Clearance between probe points
diff --git a/config/examples/Geeetech/I3_Pro_X-GT2560/Configuration_adv.h b/config/examples/Geeetech/I3_Pro_X-GT2560/Configuration_adv.h
index df3e109acdc..196ebfa29c4 100644
--- a/config/examples/Geeetech/I3_Pro_X-GT2560/Configuration_adv.h
+++ b/config/examples/Geeetech/I3_Pro_X-GT2560/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/M201/Configuration.h b/config/examples/Geeetech/M201/Configuration.h
index 95747ce9eb2..5fe6a1c5c29 100644
--- a/config/examples/Geeetech/M201/Configuration.h
+++ b/config/examples/Geeetech/M201/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1475,7 +1476,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1645,6 +1647,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1682,8 +1685,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1905,7 +1908,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Geeetech/M201/Configuration_adv.h b/config/examples/Geeetech/M201/Configuration_adv.h
index 502cc0d02d3..2bd86ca20ef 100644
--- a/config/examples/Geeetech/M201/Configuration_adv.h
+++ b/config/examples/Geeetech/M201/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2279,7 +2298,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 2000   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/MeCreator2/Configuration.h b/config/examples/Geeetech/MeCreator2/Configuration.h
index 28e847d889e..e0e74d9191f 100644
--- a/config/examples/Geeetech/MeCreator2/Configuration.h
+++ b/config/examples/Geeetech/MeCreator2/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1476,7 +1477,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1646,6 +1648,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1683,8 +1686,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Geeetech/MeCreator2/Configuration_adv.h b/config/examples/Geeetech/MeCreator2/Configuration_adv.h
index cb1b312c95a..fc95364718b 100644
--- a/config/examples/Geeetech/MeCreator2/Configuration_adv.h
+++ b/config/examples/Geeetech/MeCreator2/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/Me_creator/Configuration.h b/config/examples/Geeetech/Me_creator/Configuration.h
index a7f76209bd1..3a5c58677a0 100644
--- a/config/examples/Geeetech/Me_creator/Configuration.h
+++ b/config/examples/Geeetech/Me_creator/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Geeetech/Me_creator/Configuration_adv.h b/config/examples/Geeetech/Me_creator/Configuration_adv.h
index ad9ea04fa71..db781197a68 100644
--- a/config/examples/Geeetech/Me_creator/Configuration_adv.h
+++ b/config/examples/Geeetech/Me_creator/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/Me_ducer/Configuration.h b/config/examples/Geeetech/Me_ducer/Configuration.h
index aa55b4a4a11..8ffab5dc385 100644
--- a/config/examples/Geeetech/Me_ducer/Configuration.h
+++ b/config/examples/Geeetech/Me_ducer/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Geeetech/Me_ducer/Configuration_adv.h b/config/examples/Geeetech/Me_ducer/Configuration_adv.h
index 8c447986bdd..42b25224bbd 100644
--- a/config/examples/Geeetech/Me_ducer/Configuration_adv.h
+++ b/config/examples/Geeetech/Me_ducer/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/PI3A PRO/Configuration.h b/config/examples/Geeetech/PI3A PRO/Configuration.h
index 4befb442843..ac38e05d422 100644
--- a/config/examples/Geeetech/PI3A PRO/Configuration.h	
+++ b/config/examples/Geeetech/PI3A PRO/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1487,7 +1488,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1657,6 +1659,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1694,8 +1697,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Geeetech/PI3A PRO/Configuration_adv.h b/config/examples/Geeetech/PI3A PRO/Configuration_adv.h
index 6eee427399b..97b5ae3343f 100644
--- a/config/examples/Geeetech/PI3A PRO/Configuration_adv.h	
+++ b/config/examples/Geeetech/PI3A PRO/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/Prusa i3 Pro B/bltouch/Configuration.h b/config/examples/Geeetech/Prusa i3 Pro B/bltouch/Configuration.h
index 5e0854104ba..86e3a23f2ea 100644
--- a/config/examples/Geeetech/Prusa i3 Pro B/bltouch/Configuration.h	
+++ b/config/examples/Geeetech/Prusa i3 Pro B/bltouch/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1487,7 +1488,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1657,6 +1659,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1694,8 +1697,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Geeetech/Prusa i3 Pro B/bltouch/Configuration_adv.h b/config/examples/Geeetech/Prusa i3 Pro B/bltouch/Configuration_adv.h
index df3e109acdc..196ebfa29c4 100644
--- a/config/examples/Geeetech/Prusa i3 Pro B/bltouch/Configuration_adv.h	
+++ b/config/examples/Geeetech/Prusa i3 Pro B/bltouch/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/Prusa i3 Pro B/noprobe/Configuration.h b/config/examples/Geeetech/Prusa i3 Pro B/noprobe/Configuration.h
index 7f5fe8e019f..3670d9a3885 100644
--- a/config/examples/Geeetech/Prusa i3 Pro B/noprobe/Configuration.h	
+++ b/config/examples/Geeetech/Prusa i3 Pro B/noprobe/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1487,7 +1488,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1657,6 +1659,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1694,8 +1697,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Geeetech/Prusa i3 Pro B/noprobe/Configuration_adv.h b/config/examples/Geeetech/Prusa i3 Pro B/noprobe/Configuration_adv.h
index df3e109acdc..196ebfa29c4 100644
--- a/config/examples/Geeetech/Prusa i3 Pro B/noprobe/Configuration_adv.h	
+++ b/config/examples/Geeetech/Prusa i3 Pro B/noprobe/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/Prusa i3 Pro C/Configuration.h b/config/examples/Geeetech/Prusa i3 Pro C/Configuration.h
index 90684e9a13e..1d2e0c66dd9 100644
--- a/config/examples/Geeetech/Prusa i3 Pro C/Configuration.h	
+++ b/config/examples/Geeetech/Prusa i3 Pro C/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -2437,7 +2440,7 @@
 
 #define PREHEAT_2_LABEL       "ABS"
 #define PREHEAT_2_TEMP_HOTEND 235
-#define PREHEAT_2_TEMP_BED    95
+#define PREHEAT_2_TEMP_BED     95
 #define PREHEAT_2_TEMP_CHAMBER 35
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
diff --git a/config/examples/Geeetech/Prusa i3 Pro C/Configuration_adv.h b/config/examples/Geeetech/Prusa i3 Pro C/Configuration_adv.h
index 4fa22dddcbd..09743ef753c 100644
--- a/config/examples/Geeetech/Prusa i3 Pro C/Configuration_adv.h	
+++ b/config/examples/Geeetech/Prusa i3 Pro C/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Geeetech/Prusa i3 Pro W/Configuration.h b/config/examples/Geeetech/Prusa i3 Pro W/Configuration.h
index 3cec20bcd54..9a12c9cecd8 100644
--- a/config/examples/Geeetech/Prusa i3 Pro W/Configuration.h	
+++ b/config/examples/Geeetech/Prusa i3 Pro W/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -2437,7 +2440,7 @@
 
 #define PREHEAT_2_LABEL       "ABS"
 #define PREHEAT_2_TEMP_HOTEND 235
-#define PREHEAT_2_TEMP_BED    95
+#define PREHEAT_2_TEMP_BED     95
 #define PREHEAT_2_TEMP_CHAMBER 35
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
diff --git a/config/examples/Geeetech/Prusa i3 Pro W/Configuration_adv.h b/config/examples/Geeetech/Prusa i3 Pro W/Configuration_adv.h
index 4fa22dddcbd..09743ef753c 100644
--- a/config/examples/Geeetech/Prusa i3 Pro W/Configuration_adv.h	
+++ b/config/examples/Geeetech/Prusa i3 Pro W/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/HMS434/Configuration.h b/config/examples/HMS434/Configuration.h
index 21970ea1fd5..404ba6f8273 100644
--- a/config/examples/HMS434/Configuration.h
+++ b/config/examples/HMS434/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1475,7 +1476,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1645,6 +1647,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1682,8 +1685,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    5 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/HMS434/Configuration_adv.h b/config/examples/HMS434/Configuration_adv.h
index 413c915b4c4..d067eb3c7bc 100644
--- a/config/examples/HMS434/Configuration_adv.h
+++ b/config/examples/HMS434/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Infitary/i3-M508/Configuration.h b/config/examples/Infitary/i3-M508/Configuration.h
index 25df54908ee..7ec71af7ae8 100644
--- a/config/examples/Infitary/i3-M508/Configuration.h
+++ b/config/examples/Infitary/i3-M508/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Infitary/i3-M508/Configuration_adv.h b/config/examples/Infitary/i3-M508/Configuration_adv.h
index b9abced5f3d..8009720246d 100644
--- a/config/examples/Infitary/i3-M508/Configuration_adv.h
+++ b/config/examples/Infitary/i3-M508/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Intamsys/FunmatHT 4988/Configuration.h b/config/examples/Intamsys/FunmatHT 4988/Configuration.h
index 87f286f937b..3e7ccc30524 100644
--- a/config/examples/Intamsys/FunmatHT 4988/Configuration.h	
+++ b/config/examples/Intamsys/FunmatHT 4988/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1907,7 +1910,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Intamsys/FunmatHT 4988/Configuration_adv.h b/config/examples/Intamsys/FunmatHT 4988/Configuration_adv.h
index 94b01844651..a7ce238faac 100644
--- a/config/examples/Intamsys/FunmatHT 4988/Configuration_adv.h	
+++ b/config/examples/Intamsys/FunmatHT 4988/Configuration_adv.h	
@@ -304,8 +304,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 15     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS    15 // (°C)
 
   #define ADAPTIVE_FAN_SLOWING                // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1081,9 +1081,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1104,19 +1106,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1126,8 +1131,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1180,7 +1185,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1493,8 +1498,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1511,6 +1525,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1525,8 +1543,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1557,6 +1573,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2278,7 +2297,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z 20       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2712,7 +2731,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4408,44 +4427,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4455,11 +4519,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4470,6 +4549,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4492,7 +4633,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/JGAurora/A1/Configuration.h b/config/examples/JGAurora/A1/Configuration.h
index 26e371d976d..eddae04c047 100644
--- a/config/examples/JGAurora/A1/Configuration.h
+++ b/config/examples/JGAurora/A1/Configuration.h
@@ -109,7 +109,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -388,14 +388,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1481,7 +1482,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1651,6 +1653,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1688,8 +1691,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/JGAurora/A1/Configuration_adv.h b/config/examples/JGAurora/A1/Configuration_adv.h
index af4e730da24..d02770d3e10 100644
--- a/config/examples/JGAurora/A1/Configuration_adv.h
+++ b/config/examples/JGAurora/A1/Configuration_adv.h
@@ -311,8 +311,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1088,9 +1088,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1111,19 +1113,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1133,8 +1138,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1187,7 +1192,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1500,8 +1505,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1518,6 +1532,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1532,8 +1550,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1564,6 +1580,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2719,7 +2738,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4418,44 +4437,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4465,11 +4529,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4480,6 +4559,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4502,7 +4643,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/JGAurora/A3/Configuration.h b/config/examples/JGAurora/A3/Configuration.h
index 5d7983a4c98..53d1881ca70 100644
--- a/config/examples/JGAurora/A3/Configuration.h
+++ b/config/examples/JGAurora/A3/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/JGAurora/A3/Configuration_adv.h b/config/examples/JGAurora/A3/Configuration_adv.h
index df3e109acdc..196ebfa29c4 100644
--- a/config/examples/JGAurora/A3/Configuration_adv.h
+++ b/config/examples/JGAurora/A3/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/JGAurora/A5/Configuration.h b/config/examples/JGAurora/A5/Configuration.h
index 1dfc6977d33..2acec7699f5 100644
--- a/config/examples/JGAurora/A5/Configuration.h
+++ b/config/examples/JGAurora/A5/Configuration.h
@@ -113,7 +113,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -392,14 +392,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1485,7 +1486,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1655,6 +1657,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1692,8 +1695,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/JGAurora/A5/Configuration_adv.h b/config/examples/JGAurora/A5/Configuration_adv.h
index ae70ea72e9e..63a4f3dfa8d 100644
--- a/config/examples/JGAurora/A5/Configuration_adv.h
+++ b/config/examples/JGAurora/A5/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/JGAurora/A5S/Configuration.h b/config/examples/JGAurora/A5S/Configuration.h
index a2587fe7b59..ad9f560388d 100644
--- a/config/examples/JGAurora/A5S/Configuration.h
+++ b/config/examples/JGAurora/A5S/Configuration.h
@@ -109,7 +109,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -388,14 +388,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1481,7 +1482,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1651,6 +1653,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1688,8 +1691,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/JGAurora/A5S/Configuration_adv.h b/config/examples/JGAurora/A5S/Configuration_adv.h
index f060e7cc553..c07c3b038ba 100644
--- a/config/examples/JGAurora/A5S/Configuration_adv.h
+++ b/config/examples/JGAurora/A5S/Configuration_adv.h
@@ -311,8 +311,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1088,9 +1088,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1111,19 +1113,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1133,8 +1138,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1187,7 +1192,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1500,8 +1505,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1518,6 +1532,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1532,8 +1550,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1564,6 +1580,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2719,7 +2738,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4418,44 +4437,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4465,11 +4529,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4480,6 +4559,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4502,7 +4643,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/JGAurora/Magic/Configuration.h b/config/examples/JGAurora/Magic/Configuration.h
index 1f3a2bf0139..bffa80dbfb1 100644
--- a/config/examples/JGAurora/Magic/Configuration.h
+++ b/config/examples/JGAurora/Magic/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/JGAurora/Magic/Configuration_adv.h b/config/examples/JGAurora/Magic/Configuration_adv.h
index 6910a0fe2f1..c51d5237414 100644
--- a/config/examples/JGAurora/Magic/Configuration_adv.h
+++ b/config/examples/JGAurora/Magic/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2279,7 +2298,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 2000   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Kingroon/KP3/Configuration.h b/config/examples/Kingroon/KP3/Configuration.h
index ad1635ae211..3e5bdb8e750 100644
--- a/config/examples/Kingroon/KP3/Configuration.h
+++ b/config/examples/Kingroon/KP3/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1476,7 +1477,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1646,6 +1648,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1683,8 +1686,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1906,7 +1909,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
@@ -2436,7 +2439,7 @@
 
 #define PREHEAT_2_LABEL       "PTG"
 #define PREHEAT_2_TEMP_HOTEND 235
-#define PREHEAT_2_TEMP_BED    80
+#define PREHEAT_2_TEMP_BED     80
 #define PREHEAT_2_TEMP_CHAMBER 35
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
diff --git a/config/examples/Kingroon/KP3/Configuration_adv.h b/config/examples/Kingroon/KP3/Configuration_adv.h
index 603e86765be..9093972bb24 100644
--- a/config/examples/Kingroon/KP3/Configuration_adv.h
+++ b/config/examples/Kingroon/KP3/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Kingroon/KP3S/Configuration.h b/config/examples/Kingroon/KP3S/Configuration.h
index e5e4bf685af..6be37492cba 100644
--- a/config/examples/Kingroon/KP3S/Configuration.h
+++ b/config/examples/Kingroon/KP3S/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Kingroon/KP3S/Configuration_adv.h b/config/examples/Kingroon/KP3S/Configuration_adv.h
index df3e109acdc..196ebfa29c4 100644
--- a/config/examples/Kingroon/KP3S/Configuration_adv.h
+++ b/config/examples/Kingroon/KP3S/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Kingroon/KP3S_Pro/Configuration.h b/config/examples/Kingroon/KP3S_Pro/Configuration.h
index 51555fbdf60..566772ffa21 100644
--- a/config/examples/Kingroon/KP3S_Pro/Configuration.h
+++ b/config/examples/Kingroon/KP3S_Pro/Configuration.h
@@ -129,7 +129,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -408,14 +408,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1508,7 +1509,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1678,6 +1680,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1715,8 +1718,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Kingroon/KP3S_Pro/Configuration_adv.h b/config/examples/Kingroon/KP3S_Pro/Configuration_adv.h
index f7cdf20eefa..25f1b11ded5 100644
--- a/config/examples/Kingroon/KP3S_Pro/Configuration_adv.h
+++ b/config/examples/Kingroon/KP3S_Pro/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Kingroon/KP5L-DIY/Configuration.h b/config/examples/Kingroon/KP5L-DIY/Configuration.h
index 3a7011910d0..5320392b7df 100644
--- a/config/examples/Kingroon/KP5L-DIY/Configuration.h
+++ b/config/examples/Kingroon/KP5L-DIY/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Kingroon/KP5L-DIY/Configuration_adv.h b/config/examples/Kingroon/KP5L-DIY/Configuration_adv.h
index 582e5d15a15..ca832326e2e 100644
--- a/config/examples/Kingroon/KP5L-DIY/Configuration_adv.h
+++ b/config/examples/Kingroon/KP5L-DIY/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 20        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 8     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        20 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     8 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Labists/ET4/Configuration.h b/config/examples/Labists/ET4/Configuration.h
index f9c7549e54e..9fefc496d1d 100644
--- a/config/examples/Labists/ET4/Configuration.h
+++ b/config/examples/Labists/ET4/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1483,7 +1484,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1653,6 +1655,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1690,8 +1693,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1913,7 +1916,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Labists/ET4/Configuration_adv.h b/config/examples/Labists/ET4/Configuration_adv.h
index c249597c4bb..d9371fab660 100644
--- a/config/examples/Labists/ET4/Configuration_adv.h
+++ b/config/examples/Labists/ET4/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2279,7 +2298,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Longer/LK5/Configuration.h b/config/examples/Longer/LK5/Configuration.h
index 659d9cec08f..9e824b91878 100644
--- a/config/examples/Longer/LK5/Configuration.h
+++ b/config/examples/Longer/LK5/Configuration.h
@@ -109,7 +109,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -388,14 +388,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -2438,7 +2441,7 @@
 
 #define PREHEAT_2_LABEL       "ABS"
 #define PREHEAT_2_TEMP_HOTEND 230
-#define PREHEAT_2_TEMP_BED    80
+#define PREHEAT_2_TEMP_BED     80
 #define PREHEAT_2_TEMP_CHAMBER 35
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
diff --git a/config/examples/Longer/LK5/Configuration_adv.h b/config/examples/Longer/LK5/Configuration_adv.h
index d5fa5d80d46..9404266bff0 100644
--- a/config/examples/Longer/LK5/Configuration_adv.h
+++ b/config/examples/Longer/LK5/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 60        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 10    // (°C)
+  #define THERMAL_PROTECTION_PERIOD        60 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS    10 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/LulzBot/TAZ4/Configuration.h b/config/examples/LulzBot/TAZ4/Configuration.h
index 1a8766d59ae..087677378e3 100644
--- a/config/examples/LulzBot/TAZ4/Configuration.h
+++ b/config/examples/LulzBot/TAZ4/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1488,7 +1489,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1658,6 +1660,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1695,8 +1698,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/LulzBot/TAZ4/Configuration_adv.h b/config/examples/LulzBot/TAZ4/Configuration_adv.h
index 0d771526977..7473dc2302c 100644
--- a/config/examples/LulzBot/TAZ4/Configuration_adv.h
+++ b/config/examples/LulzBot/TAZ4/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/MBot/Cube/Configuration.h b/config/examples/MBot/Cube/Configuration.h
index 30b213f23ad..8a4dec64cfb 100644
--- a/config/examples/MBot/Cube/Configuration.h
+++ b/config/examples/MBot/Cube/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/MBot/Cube/Configuration_adv.h b/config/examples/MBot/Cube/Configuration_adv.h
index b9dfa589e1e..b9c78b8bc22 100644
--- a/config/examples/MBot/Cube/Configuration_adv.h
+++ b/config/examples/MBot/Cube/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/MakerFarm/Pegasus 12/Configuration.h b/config/examples/MakerFarm/Pegasus 12/Configuration.h
index 73e8cad527a..e1f6f8de819 100644
--- a/config/examples/MakerFarm/Pegasus 12/Configuration.h	
+++ b/config/examples/MakerFarm/Pegasus 12/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1483,7 +1484,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1653,6 +1655,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1690,8 +1693,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    5 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1913,7 +1916,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/MakerFarm/Pegasus 12/Configuration_adv.h b/config/examples/MakerFarm/Pegasus 12/Configuration_adv.h
index e0fce5472ce..df60d06b39a 100644
--- a/config/examples/MakerFarm/Pegasus 12/Configuration_adv.h	
+++ b/config/examples/MakerFarm/Pegasus 12/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   #define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2708,7 +2727,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4407,44 +4426,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4454,11 +4518,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4469,6 +4548,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4491,7 +4632,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/MakerParts/Configuration.h b/config/examples/MakerParts/Configuration.h
index 8981dfe2e89..1ea30278454 100644
--- a/config/examples/MakerParts/Configuration.h
+++ b/config/examples/MakerParts/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/MakerParts/Configuration_adv.h b/config/examples/MakerParts/Configuration_adv.h
index 26344e0d324..5e65e6b7e79 100644
--- a/config/examples/MakerParts/Configuration_adv.h
+++ b/config/examples/MakerParts/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/MakerTech3D/Proforge2sDual/Configuration.h b/config/examples/MakerTech3D/Proforge2sDual/Configuration.h
index 645c510e0d2..30503106107 100644
--- a/config/examples/MakerTech3D/Proforge2sDual/Configuration.h
+++ b/config/examples/MakerTech3D/Proforge2sDual/Configuration.h
@@ -111,7 +111,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -390,14 +390,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1480,7 +1481,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1650,6 +1652,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1687,8 +1690,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/MakerTech3D/Proforge2sDual/Configuration_adv.h b/config/examples/MakerTech3D/Proforge2sDual/Configuration_adv.h
index b991a0c4569..d41c9337404 100644
--- a/config/examples/MakerTech3D/Proforge2sDual/Configuration_adv.h
+++ b/config/examples/MakerTech3D/Proforge2sDual/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Malyan/M150/Configuration.h b/config/examples/Malyan/M150/Configuration.h
index 54320e8ec8f..cb508642385 100644
--- a/config/examples/Malyan/M150/Configuration.h
+++ b/config/examples/Malyan/M150/Configuration.h
@@ -113,7 +113,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -392,14 +392,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1497,7 +1498,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1671,6 +1673,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1708,8 +1711,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 //#define Z_CLEARANCE_DEPLOY_PROBE 10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Malyan/M150/Configuration_adv.h b/config/examples/Malyan/M150/Configuration_adv.h
index d5dfc57f5e1..29d4c74b055 100644
--- a/config/examples/Malyan/M150/Configuration_adv.h
+++ b/config/examples/Malyan/M150/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Malyan/M180/Configuration.h b/config/examples/Malyan/M180/Configuration.h
index 87dbbab904d..449e1f323e5 100644
--- a/config/examples/Malyan/M180/Configuration.h
+++ b/config/examples/Malyan/M180/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Malyan/M180/Configuration_adv.h b/config/examples/Malyan/M180/Configuration_adv.h
index df3e109acdc..196ebfa29c4 100644
--- a/config/examples/Malyan/M180/Configuration_adv.h
+++ b/config/examples/Malyan/M180/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Malyan/M200/Configuration.h b/config/examples/Malyan/M200/Configuration.h
index 8a6b845a870..5c9d3fe6518 100644
--- a/config/examples/Malyan/M200/Configuration.h
+++ b/config/examples/Malyan/M200/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1483,7 +1484,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1653,6 +1655,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1690,8 +1693,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Malyan/M200/Configuration_adv.h b/config/examples/Malyan/M200/Configuration_adv.h
index 8a5be6f52f1..5680a26455e 100644
--- a/config/examples/Malyan/M200/Configuration_adv.h
+++ b/config/examples/Malyan/M200/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1084,9 +1084,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1107,19 +1109,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1129,8 +1134,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1183,7 +1188,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1496,8 +1501,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1514,6 +1528,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1528,8 +1546,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1560,6 +1576,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2715,7 +2734,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4414,44 +4433,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4461,11 +4525,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4476,6 +4555,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4498,7 +4639,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Micromake/C1/basic/Configuration.h b/config/examples/Micromake/C1/basic/Configuration.h
index c8bf8556139..726910ef7a6 100644
--- a/config/examples/Micromake/C1/basic/Configuration.h
+++ b/config/examples/Micromake/C1/basic/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1481,7 +1482,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1651,6 +1653,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1688,8 +1691,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Micromake/C1/basic/Configuration_adv.h b/config/examples/Micromake/C1/basic/Configuration_adv.h
index 320504b3f51..3ff9e78dc47 100644
--- a/config/examples/Micromake/C1/basic/Configuration_adv.h
+++ b/config/examples/Micromake/C1/basic/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Micromake/C1/enhanced/Configuration.h b/config/examples/Micromake/C1/enhanced/Configuration.h
index d80a9683a63..d59be7ca9f3 100644
--- a/config/examples/Micromake/C1/enhanced/Configuration.h
+++ b/config/examples/Micromake/C1/enhanced/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1481,7 +1482,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1651,6 +1653,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1688,8 +1691,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Micromake/C1/enhanced/Configuration_adv.h b/config/examples/Micromake/C1/enhanced/Configuration_adv.h
index 984bafc885b..4fd66003032 100644
--- a/config/examples/Micromake/C1/enhanced/Configuration_adv.h
+++ b/config/examples/Micromake/C1/enhanced/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Mks/Robin/Configuration.h b/config/examples/Mks/Robin/Configuration.h
index 60e5d34989c..a69f8b5e85c 100644
--- a/config/examples/Mks/Robin/Configuration.h
+++ b/config/examples/Mks/Robin/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Mks/Robin/Configuration_adv.h b/config/examples/Mks/Robin/Configuration_adv.h
index df3e109acdc..196ebfa29c4 100644
--- a/config/examples/Mks/Robin/Configuration_adv.h
+++ b/config/examples/Mks/Robin/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Mks/Robin_Lite3/Configuration.h b/config/examples/Mks/Robin_Lite3/Configuration.h
index fe10b6ad845..dc758d56d45 100644
--- a/config/examples/Mks/Robin_Lite3/Configuration.h
+++ b/config/examples/Mks/Robin_Lite3/Configuration.h
@@ -116,7 +116,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -395,14 +395,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1485,7 +1486,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1655,6 +1657,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1692,8 +1695,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Mks/Robin_Lite3/Configuration_adv.h b/config/examples/Mks/Robin_Lite3/Configuration_adv.h
index 8e75dc6900c..33f1ec5ffba 100644
--- a/config/examples/Mks/Robin_Lite3/Configuration_adv.h
+++ b/config/examples/Mks/Robin_Lite3/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Mks/Robin_Pro/Configuration.h b/config/examples/Mks/Robin_Pro/Configuration.h
index 549f09009ae..b78b3b8d614 100644
--- a/config/examples/Mks/Robin_Pro/Configuration.h
+++ b/config/examples/Mks/Robin_Pro/Configuration.h
@@ -110,7 +110,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -389,14 +389,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1479,7 +1480,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1649,6 +1651,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1686,8 +1689,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Mks/Robin_Pro/Configuration_adv.h b/config/examples/Mks/Robin_Pro/Configuration_adv.h
index df3e109acdc..196ebfa29c4 100644
--- a/config/examples/Mks/Robin_Pro/Configuration_adv.h
+++ b/config/examples/Mks/Robin_Pro/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Mks/Sbase/Configuration.h b/config/examples/Mks/Sbase/Configuration.h
index bbc6eb14423..4de24d5de5d 100644
--- a/config/examples/Mks/Sbase/Configuration.h
+++ b/config/examples/Mks/Sbase/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Mks/Sbase/Configuration_adv.h b/config/examples/Mks/Sbase/Configuration_adv.h
index 1731ac2fba3..e4d78e73870 100644
--- a/config/examples/Mks/Sbase/Configuration_adv.h
+++ b/config/examples/Mks/Sbase/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 50        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 6     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        50 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     6 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Modix/Big60/Configuration.h b/config/examples/Modix/Big60/Configuration.h
index 73f28733806..2404c4829ee 100644
--- a/config/examples/Modix/Big60/Configuration.h
+++ b/config/examples/Modix/Big60/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Modix/Big60/Configuration_adv.h b/config/examples/Modix/Big60/Configuration_adv.h
index 6304c95c57a..4d3c3c9af45 100644
--- a/config/examples/Modix/Big60/Configuration_adv.h
+++ b/config/examples/Modix/Big60/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 10     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS    10 // (°C)
 
   #define ADAPTIVE_FAN_SLOWING                // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2279,7 +2298,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Nextion/Configuration.h b/config/examples/Nextion/Configuration.h
index f3212bf6cd0..f552546c9cc 100644
--- a/config/examples/Nextion/Configuration.h
+++ b/config/examples/Nextion/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Nextion/Configuration_adv.h b/config/examples/Nextion/Configuration_adv.h
index a1de851e1fb..28349311bb6 100644
--- a/config/examples/Nextion/Configuration_adv.h
+++ b/config/examples/Nextion/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/ORD Bot/Hadron/Sanguinololu/Configuration.h b/config/examples/ORD Bot/Hadron/Sanguinololu/Configuration.h
index 222c6756b84..073b3218aef 100644
--- a/config/examples/ORD Bot/Hadron/Sanguinololu/Configuration.h	
+++ b/config/examples/ORD Bot/Hadron/Sanguinololu/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1508,7 +1509,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1678,6 +1680,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1715,8 +1718,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/ORD Bot/Hadron/Sanguinololu/Configuration_adv.h b/config/examples/ORD Bot/Hadron/Sanguinololu/Configuration_adv.h
index 3e5cc2c2419..03730fa886a 100644
--- a/config/examples/ORD Bot/Hadron/Sanguinololu/Configuration_adv.h	
+++ b/config/examples/ORD Bot/Hadron/Sanguinololu/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Opulo/Lumen_REV3/Configuration.h b/config/examples/Opulo/Lumen_REV3/Configuration.h
index 2af709226b6..5d6c82355ee 100644
--- a/config/examples/Opulo/Lumen_REV3/Configuration.h
+++ b/config/examples/Opulo/Lumen_REV3/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Opulo/Lumen_REV3/Configuration_adv.h b/config/examples/Opulo/Lumen_REV3/Configuration_adv.h
index 6e5e3e098b2..1b85591cdf2 100644
--- a/config/examples/Opulo/Lumen_REV3/Configuration_adv.h
+++ b/config/examples/Opulo/Lumen_REV3/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Opulo/Lumen_REV4/Configuration.h b/config/examples/Opulo/Lumen_REV4/Configuration.h
index 7f1b86eda46..748322b74d8 100644
--- a/config/examples/Opulo/Lumen_REV4/Configuration.h
+++ b/config/examples/Opulo/Lumen_REV4/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Opulo/Lumen_REV4/Configuration_adv.h b/config/examples/Opulo/Lumen_REV4/Configuration_adv.h
index 90bdc7fd92d..d398df84135 100644
--- a/config/examples/Opulo/Lumen_REV4/Configuration_adv.h
+++ b/config/examples/Opulo/Lumen_REV4/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1081,9 +1081,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1104,19 +1106,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1126,8 +1131,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1180,7 +1185,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1493,8 +1498,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1511,6 +1525,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1525,8 +1543,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1557,6 +1573,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2712,7 +2731,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4411,44 +4430,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4458,11 +4522,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4473,6 +4552,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4495,7 +4636,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Ortur 4/Configuration.h b/config/examples/Ortur 4/Configuration.h
index 366f4244cfd..75d4a3ba19b 100644
--- a/config/examples/Ortur 4/Configuration.h	
+++ b/config/examples/Ortur 4/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES 10 // (mm) Z Clearance between probe points
@@ -1907,7 +1910,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Ortur 4/Configuration_adv.h b/config/examples/Ortur 4/Configuration_adv.h
index a0f2c593515..c27cd519dcd 100644
--- a/config/examples/Ortur 4/Configuration_adv.h	
+++ b/config/examples/Ortur 4/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 60        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 5     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        60 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     5 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2280,7 +2299,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  2       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 2       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4410,44 +4429,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4457,11 +4521,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4472,6 +4551,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4494,7 +4635,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Polargraph/Configuration.h b/config/examples/Polargraph/Configuration.h
index 1928411ba62..9623d1d4d2f 100644
--- a/config/examples/Polargraph/Configuration.h
+++ b/config/examples/Polargraph/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1481,7 +1482,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1651,6 +1653,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1688,8 +1691,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Polargraph/Configuration_adv.h b/config/examples/Polargraph/Configuration_adv.h
index 946932122f4..d7754be49f3 100644
--- a/config/examples/Polargraph/Configuration_adv.h
+++ b/config/examples/Polargraph/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Printrbot/PrintrboardG2/Configuration.h b/config/examples/Printrbot/PrintrboardG2/Configuration.h
index 38c99140373..a7cca11a850 100644
--- a/config/examples/Printrbot/PrintrboardG2/Configuration.h
+++ b/config/examples/Printrbot/PrintrboardG2/Configuration.h
@@ -109,7 +109,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -388,14 +388,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1479,7 +1480,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1649,6 +1651,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1686,8 +1689,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Printrbot/PrintrboardG2/Configuration_adv.h b/config/examples/Printrbot/PrintrboardG2/Configuration_adv.h
index df3e109acdc..196ebfa29c4 100644
--- a/config/examples/Printrbot/PrintrboardG2/Configuration_adv.h
+++ b/config/examples/Printrbot/PrintrboardG2/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Printrbot/Simple Metal RevD/Configuration.h b/config/examples/Printrbot/Simple Metal RevD/Configuration.h
index 3081fdb481c..fde02df7cf0 100644
--- a/config/examples/Printrbot/Simple Metal RevD/Configuration.h	
+++ b/config/examples/Printrbot/Simple Metal RevD/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    4 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  3 // (mm) Z Clearance between probe points
diff --git a/config/examples/Printrbot/Simple Metal RevD/Configuration_adv.h b/config/examples/Printrbot/Simple Metal RevD/Configuration_adv.h
index df3e109acdc..196ebfa29c4 100644
--- a/config/examples/Printrbot/Simple Metal RevD/Configuration_adv.h	
+++ b/config/examples/Printrbot/Simple Metal RevD/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Prusa/MK3/Configuration.h b/config/examples/Prusa/MK3/Configuration.h
index fe09a016ce6..2c3d0644275 100644
--- a/config/examples/Prusa/MK3/Configuration.h
+++ b/config/examples/Prusa/MK3/Configuration.h
@@ -127,7 +127,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -406,14 +406,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1507,7 +1508,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1677,6 +1679,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1714,8 +1717,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    2 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  2 // (mm) Z Clearance between probe points
@@ -1940,7 +1943,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Prusa/MK3/Configuration_adv.h b/config/examples/Prusa/MK3/Configuration_adv.h
index 7368cdd3928..1b35b759cbf 100644
--- a/config/examples/Prusa/MK3/Configuration_adv.h
+++ b/config/examples/Prusa/MK3/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 45        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 10     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        45 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS    10 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2715,7 +2734,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4418,44 +4437,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4465,11 +4529,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4480,6 +4559,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4502,7 +4643,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Prusa/MK3S-BigTreeTech-BTT002/Configuration.h b/config/examples/Prusa/MK3S-BigTreeTech-BTT002/Configuration.h
index 05f60b532f6..de0a1a005aa 100644
--- a/config/examples/Prusa/MK3S-BigTreeTech-BTT002/Configuration.h
+++ b/config/examples/Prusa/MK3S-BigTreeTech-BTT002/Configuration.h
@@ -120,7 +120,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -399,14 +399,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1497,7 +1498,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1667,6 +1669,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1704,8 +1707,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    0 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  2 // (mm) Z Clearance between probe points
@@ -1931,7 +1934,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
@@ -2461,7 +2464,7 @@
 
 #define PREHEAT_2_LABEL       "PETG"
 #define PREHEAT_2_TEMP_HOTEND 240
-#define PREHEAT_2_TEMP_BED    80
+#define PREHEAT_2_TEMP_BED     80
 #define PREHEAT_2_TEMP_CHAMBER 35
 #define PREHEAT_2_FAN_SPEED   255 // Value from 0 to 255
 
diff --git a/config/examples/Prusa/MK3S-BigTreeTech-BTT002/Configuration_adv.h b/config/examples/Prusa/MK3S-BigTreeTech-BTT002/Configuration_adv.h
index 15aaeba5562..11e12c3cb35 100644
--- a/config/examples/Prusa/MK3S-BigTreeTech-BTT002/Configuration_adv.h
+++ b/config/examples/Prusa/MK3S-BigTreeTech-BTT002/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 8     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     8 // (°C)
 
   #define ADAPTIVE_FAN_SLOWING                // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2279,11 +2298,11 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
-    #define DOUBLECLICK_MAX_INTERVAL 800   // Maximum interval between clicks, in milliseconds.
+    #define DOUBLECLICK_MAX_INTERVAL 800    // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
-    #define MOVE_Z_WHEN_IDLE              // Jump to the move Z menu on double-click when printer is idle.
+    #define MOVE_Z_WHEN_IDLE                // Jump to the move Z menu on double-click when printer is idle.
     #if ENABLED(MOVE_Z_WHEN_IDLE)
       #define MOVE_Z_IDLE_MULTIPLICATOR 1   // Multiply 1mm by this factor for the move step size.
     #endif
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4417,44 +4436,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4464,11 +4528,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4479,6 +4558,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4501,7 +4642,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Qidi/Qidi 1/Configuration.h b/config/examples/Qidi/Qidi 1/Configuration.h
index 8b2f4ff99c3..896b3a6cba5 100644
--- a/config/examples/Qidi/Qidi 1/Configuration.h	
+++ b/config/examples/Qidi/Qidi 1/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Qidi/Qidi 1/Configuration_adv.h b/config/examples/Qidi/Qidi 1/Configuration_adv.h
index 532a4d52ae8..e6aa8bdf2a1 100644
--- a/config/examples/Qidi/Qidi 1/Configuration_adv.h	
+++ b/config/examples/Qidi/Qidi 1/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 120        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 5     // (°C)
+  #define THERMAL_PROTECTION_PERIOD       120 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     5 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Raiscube/A8r/Configuration.h b/config/examples/Raiscube/A8r/Configuration.h
index edc5a46abc1..32c081134c3 100644
--- a/config/examples/Raiscube/A8r/Configuration.h
+++ b/config/examples/Raiscube/A8r/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1495,7 +1496,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1679,6 +1681,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1716,8 +1719,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #if 1 // 0 for less clearance
   #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
diff --git a/config/examples/Raiscube/A8r/Configuration_adv.h b/config/examples/Raiscube/A8r/Configuration_adv.h
index 78af11cc441..c2f8818a4a4 100644
--- a/config/examples/Raiscube/A8r/Configuration_adv.h
+++ b/config/examples/Raiscube/A8r/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 60        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 10    // (°C)
+  #define THERMAL_PROTECTION_PERIOD        60 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS    10 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/RapideLite/RL200/Configuration.h b/config/examples/RapideLite/RL200/Configuration.h
index 60b09db0d1a..12f6787f020 100644
--- a/config/examples/RapideLite/RL200/Configuration.h
+++ b/config/examples/RapideLite/RL200/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/RapideLite/RL200/Configuration_adv.h b/config/examples/RapideLite/RL200/Configuration_adv.h
index ad9ea04fa71..db781197a68 100644
--- a/config/examples/RapideLite/RL200/Configuration_adv.h
+++ b/config/examples/RapideLite/RL200/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Renkforce/RF100/Configuration.h b/config/examples/Renkforce/RF100/Configuration.h
index 3014658585f..d8f4a704222 100644
--- a/config/examples/Renkforce/RF100/Configuration.h
+++ b/config/examples/Renkforce/RF100/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -391,14 +391,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1482,7 +1483,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1652,6 +1654,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1689,8 +1692,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Renkforce/RF100/Configuration_adv.h b/config/examples/Renkforce/RF100/Configuration_adv.h
index ea71d975180..1e3b33f691b 100644
--- a/config/examples/Renkforce/RF100/Configuration_adv.h
+++ b/config/examples/Renkforce/RF100/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Renkforce/RF100XL/Configuration.h b/config/examples/Renkforce/RF100XL/Configuration.h
index ce365236656..b64557e301e 100644
--- a/config/examples/Renkforce/RF100XL/Configuration.h
+++ b/config/examples/Renkforce/RF100XL/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -391,14 +391,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1482,7 +1483,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1652,6 +1654,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1689,8 +1692,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Renkforce/RF100XL/Configuration_adv.h b/config/examples/Renkforce/RF100XL/Configuration_adv.h
index ea71d975180..1e3b33f691b 100644
--- a/config/examples/Renkforce/RF100XL/Configuration_adv.h
+++ b/config/examples/Renkforce/RF100XL/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Renkforce/RF100v2/Configuration.h b/config/examples/Renkforce/RF100v2/Configuration.h
index 26c37929cd1..41506973072 100644
--- a/config/examples/Renkforce/RF100v2/Configuration.h
+++ b/config/examples/Renkforce/RF100v2/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -391,14 +391,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1482,7 +1483,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1652,6 +1654,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1689,8 +1692,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Renkforce/RF100v2/Configuration_adv.h b/config/examples/Renkforce/RF100v2/Configuration_adv.h
index ea71d975180..1e3b33f691b 100644
--- a/config/examples/Renkforce/RF100v2/Configuration_adv.h
+++ b/config/examples/Renkforce/RF100v2/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/RepRapPro/Huxley/Configuration.h b/config/examples/RepRapPro/Huxley/Configuration.h
index b4a7d63c2a2..9a868a6aaa3 100644
--- a/config/examples/RepRapPro/Huxley/Configuration.h
+++ b/config/examples/RepRapPro/Huxley/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1518,7 +1519,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1688,6 +1690,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1725,8 +1728,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/RepRapPro/Huxley/Configuration_adv.h b/config/examples/RepRapPro/Huxley/Configuration_adv.h
index df3e109acdc..196ebfa29c4 100644
--- a/config/examples/RepRapPro/Huxley/Configuration_adv.h
+++ b/config/examples/RepRapPro/Huxley/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/RepRapWorld/Megatronics/Configuration.h b/config/examples/RepRapWorld/Megatronics/Configuration.h
index 9ab2f4fc8d3..81e9e53966a 100644
--- a/config/examples/RepRapWorld/Megatronics/Configuration.h
+++ b/config/examples/RepRapWorld/Megatronics/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/RepRapWorld/Megatronics/Configuration_adv.h b/config/examples/RepRapWorld/Megatronics/Configuration_adv.h
index de78d0e66e7..506c0e59f1b 100644
--- a/config/examples/RepRapWorld/Megatronics/Configuration_adv.h
+++ b/config/examples/RepRapWorld/Megatronics/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/RepRapWorld/Minitronics20/CNC/Configuration.h b/config/examples/RepRapWorld/Minitronics20/CNC/Configuration.h
index b0b5cf56f1e..e512714ef42 100644
--- a/config/examples/RepRapWorld/Minitronics20/CNC/Configuration.h
+++ b/config/examples/RepRapWorld/Minitronics20/CNC/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/RepRapWorld/Minitronics20/CNC/Configuration_adv.h b/config/examples/RepRapWorld/Minitronics20/CNC/Configuration_adv.h
index 10ad163d5fe..ff68ce31038 100644
--- a/config/examples/RepRapWorld/Minitronics20/CNC/Configuration_adv.h
+++ b/config/examples/RepRapWorld/Minitronics20/CNC/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/RigidBot/Configuration.h b/config/examples/RigidBot/Configuration.h
index b31e91eac66..958db9e4683 100644
--- a/config/examples/RigidBot/Configuration.h
+++ b/config/examples/RigidBot/Configuration.h
@@ -110,7 +110,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -389,14 +389,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1491,7 +1492,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1661,6 +1663,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1698,8 +1701,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/RigidBot/Configuration_adv.h b/config/examples/RigidBot/Configuration_adv.h
index ed849357de6..4ad150c38ba 100644
--- a/config/examples/RigidBot/Configuration_adv.h
+++ b/config/examples/RigidBot/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Robo3D/R1+/Configuration.h b/config/examples/Robo3D/R1+/Configuration.h
index 11e810f1139..d7a9bcb5a3e 100644
--- a/config/examples/Robo3D/R1+/Configuration.h
+++ b/config/examples/Robo3D/R1+/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Robo3D/R1+/Configuration_adv.h b/config/examples/Robo3D/R1+/Configuration_adv.h
index df3e109acdc..196ebfa29c4 100644
--- a/config/examples/Robo3D/R1+/Configuration_adv.h
+++ b/config/examples/Robo3D/R1+/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Rolohaun/Rook MK1/Configuration.h b/config/examples/Rolohaun/Rook MK1/Configuration.h
index f4099c2b9ed..013e36e2d31 100644
--- a/config/examples/Rolohaun/Rook MK1/Configuration.h	
+++ b/config/examples/Rolohaun/Rook MK1/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1907,7 +1910,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Rolohaun/Rook MK1/Configuration_adv.h b/config/examples/Rolohaun/Rook MK1/Configuration_adv.h
index 350360e5998..02bc21150fa 100644
--- a/config/examples/Rolohaun/Rook MK1/Configuration_adv.h	
+++ b/config/examples/Rolohaun/Rook MK1/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   #define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/SCARA/MP_SCARA/Configuration.h b/config/examples/SCARA/MP_SCARA/Configuration.h
index 30cf52fc4db..a862539a656 100644
--- a/config/examples/SCARA/MP_SCARA/Configuration.h
+++ b/config/examples/SCARA/MP_SCARA/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1479,7 +1480,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1649,6 +1651,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1686,8 +1689,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/SCARA/MP_SCARA/Configuration_adv.h b/config/examples/SCARA/MP_SCARA/Configuration_adv.h
index 9ff19333a6c..22b4c335ff4 100644
--- a/config/examples/SCARA/MP_SCARA/Configuration_adv.h
+++ b/config/examples/SCARA/MP_SCARA/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/SCARA/Morgan/Configuration.h b/config/examples/SCARA/Morgan/Configuration.h
index 2e9f2babbd2..d1a8444ddfc 100644
--- a/config/examples/SCARA/Morgan/Configuration.h
+++ b/config/examples/SCARA/Morgan/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/SCARA/Morgan/Configuration_adv.h b/config/examples/SCARA/Morgan/Configuration_adv.h
index 65b71ada8e6..963a2af1f34 100644
--- a/config/examples/SCARA/Morgan/Configuration_adv.h
+++ b/config/examples/SCARA/Morgan/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/STM32/Black_STM32F407VET6/Configuration.h b/config/examples/STM32/Black_STM32F407VET6/Configuration.h
index 5af268a9ab3..34be9319516 100644
--- a/config/examples/STM32/Black_STM32F407VET6/Configuration.h
+++ b/config/examples/STM32/Black_STM32F407VET6/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/STM32/Black_STM32F407VET6/Configuration_adv.h b/config/examples/STM32/Black_STM32F407VET6/Configuration_adv.h
index 39b261a1057..9177ee861c2 100644
--- a/config/examples/STM32/Black_STM32F407VET6/Configuration_adv.h
+++ b/config/examples/STM32/Black_STM32F407VET6/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/STM32/STM32F103RE/Configuration.h b/config/examples/STM32/STM32F103RE/Configuration.h
index fff97b59483..02a696a7faf 100644
--- a/config/examples/STM32/STM32F103RE/Configuration.h
+++ b/config/examples/STM32/STM32F103RE/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/STM32/STM32F103RE/Configuration_adv.h b/config/examples/STM32/STM32F103RE/Configuration_adv.h
index df3e109acdc..196ebfa29c4 100644
--- a/config/examples/STM32/STM32F103RE/Configuration_adv.h
+++ b/config/examples/STM32/STM32F103RE/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Simax/Mi-M200/Configuration.h b/config/examples/Simax/Mi-M200/Configuration.h
index f561ec0b96d..bcd46088003 100644
--- a/config/examples/Simax/Mi-M200/Configuration.h
+++ b/config/examples/Simax/Mi-M200/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Simax/Mi-M200/Configuration_adv.h b/config/examples/Simax/Mi-M200/Configuration_adv.h
index 17a3c8ce142..586563d4338 100644
--- a/config/examples/Simax/Mi-M200/Configuration_adv.h
+++ b/config/examples/Simax/Mi-M200/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Simulator/Configuration.h b/config/examples/Simulator/Configuration.h
index bc6d91ced65..34fe05d8e1c 100644
--- a/config/examples/Simulator/Configuration.h
+++ b/config/examples/Simulator/Configuration.h
@@ -123,7 +123,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -402,14 +402,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1493,7 +1494,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1663,6 +1665,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1700,8 +1703,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Simulator/Configuration_adv.h b/config/examples/Simulator/Configuration_adv.h
index 0e69bd8a5d1..cef76e1c23e 100644
--- a/config/examples/Simulator/Configuration_adv.h
+++ b/config/examples/Simulator/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Sovol/SV-01/BigTreeTech SKR E3 Turbo/Configuration.h b/config/examples/Sovol/SV-01/BigTreeTech SKR E3 Turbo/Configuration.h
index c0d1f223237..e3876f575fc 100644
--- a/config/examples/Sovol/SV-01/BigTreeTech SKR E3 Turbo/Configuration.h	
+++ b/config/examples/Sovol/SV-01/BigTreeTech SKR E3 Turbo/Configuration.h	
@@ -112,7 +112,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -393,14 +393,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1485,7 +1486,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1655,6 +1657,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1692,8 +1695,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Sovol/SV-01/BigTreeTech SKR E3 Turbo/Configuration_adv.h b/config/examples/Sovol/SV-01/BigTreeTech SKR E3 Turbo/Configuration_adv.h
index 21294042457..4362101f147 100644
--- a/config/examples/Sovol/SV-01/BigTreeTech SKR E3 Turbo/Configuration_adv.h	
+++ b/config/examples/Sovol/SV-01/BigTreeTech SKR E3 Turbo/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Sovol/SV-01/BigTreeTech SKR Mini E3 2.0/Configuration.h b/config/examples/Sovol/SV-01/BigTreeTech SKR Mini E3 2.0/Configuration.h
index a6eb6921a9e..132350ae446 100644
--- a/config/examples/Sovol/SV-01/BigTreeTech SKR Mini E3 2.0/Configuration.h	
+++ b/config/examples/Sovol/SV-01/BigTreeTech SKR Mini E3 2.0/Configuration.h	
@@ -111,7 +111,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -390,14 +390,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1483,7 +1484,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1653,6 +1655,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1690,8 +1693,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Sovol/SV-01/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h b/config/examples/Sovol/SV-01/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h
index 2172a1981b3..e2de2cefe6b 100644
--- a/config/examples/Sovol/SV-01/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h	
+++ b/config/examples/Sovol/SV-01/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Sovol/SV-01/BigTreeTech SKR Mini E3 3.0/Configuration.h b/config/examples/Sovol/SV-01/BigTreeTech SKR Mini E3 3.0/Configuration.h
index 2bfc297ff3b..02ab60486f1 100644
--- a/config/examples/Sovol/SV-01/BigTreeTech SKR Mini E3 3.0/Configuration.h	
+++ b/config/examples/Sovol/SV-01/BigTreeTech SKR Mini E3 3.0/Configuration.h	
@@ -112,7 +112,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -391,14 +391,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1485,7 +1486,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1655,6 +1657,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1692,8 +1695,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    7 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  3 // (mm) Z Clearance between probe points
@@ -2452,7 +2455,7 @@
 
 #define PREHEAT_2_LABEL       "ABS"
 #define PREHEAT_2_TEMP_HOTEND 230
-#define PREHEAT_2_TEMP_BED    90
+#define PREHEAT_2_TEMP_BED     90
 #define PREHEAT_2_TEMP_CHAMBER 35
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
diff --git a/config/examples/Sovol/SV-01/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h b/config/examples/Sovol/SV-01/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h
index e312c0c8308..2013cb44c13 100644
--- a/config/examples/Sovol/SV-01/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h	
+++ b/config/examples/Sovol/SV-01/BigTreeTech SKR Mini E3 3.0/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Sovol/SV-01/CrealityV22/Configuration.h b/config/examples/Sovol/SV-01/CrealityV22/Configuration.h
index a8cecaef5b1..7964dadc8f1 100644
--- a/config/examples/Sovol/SV-01/CrealityV22/Configuration.h
+++ b/config/examples/Sovol/SV-01/CrealityV22/Configuration.h
@@ -111,7 +111,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -390,14 +390,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1482,7 +1483,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1652,6 +1654,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1689,8 +1692,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Sovol/SV-01/CrealityV22/Configuration_adv.h b/config/examples/Sovol/SV-01/CrealityV22/Configuration_adv.h
index 9d6b58b354c..28a99e6013a 100644
--- a/config/examples/Sovol/SV-01/CrealityV22/Configuration_adv.h
+++ b/config/examples/Sovol/SV-01/CrealityV22/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1084,9 +1084,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1107,19 +1109,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1129,8 +1134,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1183,7 +1188,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1496,8 +1501,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1514,6 +1528,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1528,8 +1546,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1560,6 +1576,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2715,7 +2734,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4414,44 +4433,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4461,11 +4525,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4476,6 +4555,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4498,7 +4639,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Sovol/SV-01/CrealityV221/Configuration.h b/config/examples/Sovol/SV-01/CrealityV221/Configuration.h
index de8aab57de9..44148a80ea7 100644
--- a/config/examples/Sovol/SV-01/CrealityV221/Configuration.h
+++ b/config/examples/Sovol/SV-01/CrealityV221/Configuration.h
@@ -111,7 +111,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -390,14 +390,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1482,7 +1483,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1652,6 +1654,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1689,8 +1692,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Sovol/SV-01/CrealityV221/Configuration_adv.h b/config/examples/Sovol/SV-01/CrealityV221/Configuration_adv.h
index 31ae64894e2..bf998a78e37 100644
--- a/config/examples/Sovol/SV-01/CrealityV221/Configuration_adv.h
+++ b/config/examples/Sovol/SV-01/CrealityV221/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1084,9 +1084,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1107,19 +1109,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1129,8 +1134,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1183,7 +1188,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1496,8 +1501,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1514,6 +1528,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1528,8 +1546,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1560,6 +1576,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2715,7 +2734,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4414,44 +4433,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4461,11 +4525,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4476,6 +4555,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4498,7 +4639,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Sovol/SV-02/Configuration.h b/config/examples/Sovol/SV-02/Configuration.h
index ed1a6a41cf2..7d7c7de1544 100644
--- a/config/examples/Sovol/SV-02/Configuration.h
+++ b/config/examples/Sovol/SV-02/Configuration.h
@@ -111,7 +111,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -390,14 +390,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1482,7 +1483,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1652,6 +1654,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1689,8 +1692,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Sovol/SV-02/Configuration_adv.h b/config/examples/Sovol/SV-02/Configuration_adv.h
index bd977858b7f..df99b892c5b 100644
--- a/config/examples/Sovol/SV-02/Configuration_adv.h
+++ b/config/examples/Sovol/SV-02/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1084,9 +1084,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1107,19 +1109,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1129,8 +1134,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1183,7 +1188,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1496,8 +1501,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1514,6 +1528,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1528,8 +1546,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1560,6 +1576,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2715,7 +2734,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4414,44 +4433,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4461,11 +4525,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4476,6 +4555,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4498,7 +4639,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Sovol/SV-03/Configuration.h b/config/examples/Sovol/SV-03/Configuration.h
index 9112a3b700d..a57121fe076 100644
--- a/config/examples/Sovol/SV-03/Configuration.h
+++ b/config/examples/Sovol/SV-03/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Sovol/SV-03/Configuration_adv.h b/config/examples/Sovol/SV-03/Configuration_adv.h
index 322edbeaae1..dad0126ea63 100644
--- a/config/examples/Sovol/SV-03/Configuration_adv.h
+++ b/config/examples/Sovol/SV-03/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Sovol/SV-05/Configuration.h b/config/examples/Sovol/SV-05/Configuration.h
index d1f23402b92..c738dcaa3d5 100644
--- a/config/examples/Sovol/SV-05/Configuration.h
+++ b/config/examples/Sovol/SV-05/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -2437,7 +2440,7 @@
 
 #define PREHEAT_2_LABEL       "PETG"
 #define PREHEAT_2_TEMP_HOTEND 240
-#define PREHEAT_2_TEMP_BED    70
+#define PREHEAT_2_TEMP_BED     70
 #define PREHEAT_2_TEMP_CHAMBER 35
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
diff --git a/config/examples/Sovol/SV-05/Configuration_adv.h b/config/examples/Sovol/SV-05/Configuration_adv.h
index af8ce29ad81..648f3cf9738 100644
--- a/config/examples/Sovol/SV-05/Configuration_adv.h
+++ b/config/examples/Sovol/SV-05/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Sovol/SV-06/Configuration.h b/config/examples/Sovol/SV-06/Configuration.h
new file mode 100644
index 00000000000..000f50814cf
--- /dev/null
+++ b/config/examples/Sovol/SV-06/Configuration.h
@@ -0,0 +1,3659 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2024 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+#error "Don't build with import-2.1.x configurations!"
+#error "Use the 'bugfix...' or 'release...' configurations matching your Marlin version."
+
+/**
+ * Configuration.h
+ *
+ * Basic settings such as:
+ *
+ * - Type of electronics
+ * - Type of temperature sensor
+ * - Printer geometry
+ * - Endstop configuration
+ * - LCD controller
+ * - Extra features
+ *
+ * Advanced settings can be found in Configuration_adv.h
+ */
+#define CONFIGURATION_H_VERSION 02010300
+
+//===========================================================================
+//============================= Getting Started =============================
+//===========================================================================
+
+/**
+ * Here are some useful links to help get your machine configured and calibrated:
+ *
+ * Example Configs:     https://github.com/MarlinFirmware/Configurations/branches/all
+ *
+ * Průša Calculator:    https://blog.prusa3d.com/calculator_3416/
+ *
+ * Calibration Guides:  https://reprap.org/wiki/Calibration
+ *                      https://reprap.org/wiki/Triffid_Hunter%27s_Calibration_Guide
+ *                      https://web.archive.org/web/20220907014303/sites.google.com/site/repraplogphase/calibration-of-your-reprap
+ *                      https://youtu.be/wAL9d7FgInk
+ *                      https://teachingtechyt.github.io/calibration.html
+ *
+ * Calibration Objects: https://www.thingiverse.com/thing:5573
+ *                      https://www.thingiverse.com/thing:1278865
+ */
+
+// @section info
+
+// Author info of this build printed to the host during boot and M115
+#define STRING_CONFIG_H_AUTHOR "(Mr.Pond)" // Who made the changes.
+//#define CUSTOM_VERSION_FILE Version.h // Path from the root directory (no quotes)
+
+// @section machine
+
+// Choose the name from boards.h that matches your setup
+#ifndef MOTHERBOARD
+  #define MOTHERBOARD BOARD_SOVOL_V131
+#endif
+
+/**
+ * Select the serial port on the board to use for communication with the host.
+ * This allows the connection of wireless adapters (for instance) to non-default port pins.
+ * Serial port -1 is the USB emulated serial port, if available.
+ * Note: The first serial port (-1 or 0) will always be used by the Arduino bootloader.
+ *
+ * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
+ */
+#define SERIAL_PORT 1
+
+/**
+ * Serial Port Baud Rate
+ * This is the default communication speed for all serial ports.
+ * Set the baud rate defaults for additional serial ports below.
+ *
+ * 250000 works in most cases, but you might try a lower speed if
+ * you commonly experience drop-outs during host printing.
+ * You may try up to 1000000 to speed up SD file transfer.
+ *
+ * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
+ */
+#define BAUDRATE 115200
+
+//#define BAUD_RATE_GCODE     // Enable G-code M575 to set the baud rate
+
+/**
+ * Select a secondary serial port on the board to use for communication with the host.
+ * Currently Ethernet (-2) is only supported on Teensy 4.1 boards.
+ * :[-2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
+ */
+//#define SERIAL_PORT_2 -1
+//#define BAUDRATE_2 250000   // :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000] Enable to override BAUDRATE
+
+/**
+ * Select a third serial port on the board to use for communication with the host.
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
+ * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
+ */
+//#define SERIAL_PORT_3 1
+//#define BAUDRATE_3 250000   // :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000] Enable to override BAUDRATE
+
+/**
+ * Select a serial port to communicate with RS485 protocol
+ * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
+ */
+//#define RS485_SERIAL_PORT 1
+#ifdef RS485_SERIAL_PORT
+  //#define M485_PROTOCOL 1   // Check your host for protocol compatibility
+  //#define RS485_BUS_BUFFER_SIZE 128
+#endif
+
+// Enable the Bluetooth serial interface on AT90USB devices
+//#define BLUETOOTH
+
+// Name displayed in the LCD "Ready" message and Info menu
+//#define CUSTOM_MACHINE_NAME "3D Printer"
+
+// Printer's unique ID, used by some programs to differentiate between machines.
+// Choose your own or use a service like https://www.uuidgenerator.net/version4
+//#define MACHINE_UUID "00000000-0000-0000-0000-000000000000"
+
+// @section stepper drivers
+
+/**
+ * Stepper Drivers
+ *
+ * These settings allow Marlin to tune stepper driver timing and enable advanced options for
+ * stepper drivers that support them. You may also override timing options in Configuration_adv.h.
+ *
+ * Use TMC2208/TMC2208_STANDALONE for TMC2225 drivers and TMC2209/TMC2209_STANDALONE for TMC2226 drivers.
+ *
+ * Options: A4988, A5984, DRV8825, LV8729, TB6560, TB6600, TMC2100,
+ *          TMC2130, TMC2130_STANDALONE, TMC2160, TMC2160_STANDALONE,
+ *          TMC2208, TMC2208_STANDALONE, TMC2209, TMC2209_STANDALONE,
+ *          TMC2660, TMC2660_STANDALONE, TMC5130, TMC5130_STANDALONE,
+ *          TMC5160, TMC5160_STANDALONE
+ * :['A4988', 'A5984', 'DRV8825', 'LV8729', 'TB6560', 'TB6600', 'TMC2100', 'TMC2130', 'TMC2130_STANDALONE', 'TMC2160', 'TMC2160_STANDALONE', 'TMC2208', 'TMC2208_STANDALONE', 'TMC2209', 'TMC2209_STANDALONE', 'TMC2660', 'TMC2660_STANDALONE', 'TMC5130', 'TMC5130_STANDALONE', 'TMC5160', 'TMC5160_STANDALONE']
+ */
+#define X_DRIVER_TYPE TMC2209
+#define Y_DRIVER_TYPE TMC2209
+#define Z_DRIVER_TYPE TMC2209
+//#define X2_DRIVER_TYPE A4988
+//#define Y2_DRIVER_TYPE A4988
+//#define Z2_DRIVER_TYPE A4988
+//#define Z3_DRIVER_TYPE A4988
+//#define Z4_DRIVER_TYPE A4988
+//#define I_DRIVER_TYPE  A4988
+//#define J_DRIVER_TYPE  A4988
+//#define K_DRIVER_TYPE  A4988
+//#define U_DRIVER_TYPE  A4988
+//#define V_DRIVER_TYPE  A4988
+//#define W_DRIVER_TYPE  A4988
+#define E0_DRIVER_TYPE TMC2209
+//#define E1_DRIVER_TYPE A4988
+//#define E2_DRIVER_TYPE A4988
+//#define E3_DRIVER_TYPE A4988
+//#define E4_DRIVER_TYPE A4988
+//#define E5_DRIVER_TYPE A4988
+//#define E6_DRIVER_TYPE A4988
+//#define E7_DRIVER_TYPE A4988
+
+/**
+ * Additional Axis Settings
+ *
+ * Define AXISn_ROTATES for all axes that rotate or pivot.
+ * Rotational axis coordinates are expressed in degrees.
+ *
+ * AXISn_NAME defines the letter used to refer to the axis in (most) G-code commands.
+ * By convention the names and roles are typically:
+ *   'A' : Rotational axis parallel to X
+ *   'B' : Rotational axis parallel to Y
+ *   'C' : Rotational axis parallel to Z
+ *   'U' : Secondary linear axis parallel to X
+ *   'V' : Secondary linear axis parallel to Y
+ *   'W' : Secondary linear axis parallel to Z
+ *
+ * Regardless of these settings the axes are internally named I, J, K, U, V, W.
+ */
+#ifdef I_DRIVER_TYPE
+  #define AXIS4_NAME 'A' // :['A', 'B', 'C', 'U', 'V', 'W']
+  #define AXIS4_ROTATES
+#endif
+#ifdef J_DRIVER_TYPE
+  #define AXIS5_NAME 'B' // :['B', 'C', 'U', 'V', 'W']
+  #define AXIS5_ROTATES
+#endif
+#ifdef K_DRIVER_TYPE
+  #define AXIS6_NAME 'C' // :['C', 'U', 'V', 'W']
+  #define AXIS6_ROTATES
+#endif
+#ifdef U_DRIVER_TYPE
+  #define AXIS7_NAME 'U' // :['U', 'V', 'W']
+  //#define AXIS7_ROTATES
+#endif
+#ifdef V_DRIVER_TYPE
+  #define AXIS8_NAME 'V' // :['V', 'W']
+  //#define AXIS8_ROTATES
+#endif
+#ifdef W_DRIVER_TYPE
+  #define AXIS9_NAME 'W' // :['W']
+  //#define AXIS9_ROTATES
+#endif
+
+// @section extruder
+
+// This defines the number of extruders
+// :[0, 1, 2, 3, 4, 5, 6, 7, 8]
+#define EXTRUDERS 1
+
+// Generally expected filament diameter (1.75, 2.85, 3.0, ...). Used for Volumetric, Filament Width Sensor, etc.
+#define DEFAULT_NOMINAL_FILAMENT_DIA 1.75
+
+// For Cyclops or any "multi-extruder" that shares a single nozzle.
+//#define SINGLENOZZLE
+
+// Save and restore temperature and fan speed on tool-change.
+// Set standby for the unselected tool with M104/106/109 T...
+#if ENABLED(SINGLENOZZLE)
+  //#define SINGLENOZZLE_STANDBY_TEMP
+  //#define SINGLENOZZLE_STANDBY_FAN
+#endif
+
+// A dual extruder that uses a single stepper motor
+//#define SWITCHING_EXTRUDER
+#if ENABLED(SWITCHING_EXTRUDER)
+  #define SWITCHING_EXTRUDER_SERVO_NR 0
+  #define SWITCHING_EXTRUDER_SERVO_ANGLES { 0, 90 } // Angles for E0, E1[, E2, E3]
+  #if EXTRUDERS > 3
+    #define SWITCHING_EXTRUDER_E23_SERVO_NR 1
+  #endif
+#endif
+
+// Switch extruders by bumping the toolhead. Requires EVENT_GCODE_TOOLCHANGE_#.
+//#define MECHANICAL_SWITCHING_EXTRUDER
+
+/**
+ * A dual-nozzle that uses a servomotor to raise/lower one (or both) of the nozzles.
+ * Can be combined with SWITCHING_EXTRUDER.
+ */
+//#define SWITCHING_NOZZLE
+#if ENABLED(SWITCHING_NOZZLE)
+  #define SWITCHING_NOZZLE_SERVO_NR 0
+  //#define SWITCHING_NOZZLE_E1_SERVO_NR 1          // If two servos are used, the index of the second
+  #define SWITCHING_NOZZLE_SERVO_ANGLES { 0, 90 }   // A pair of angles for { E0, E1 }.
+                                                    // For Dual Servo use two pairs: { { lower, raise }, { lower, raise } }
+  #define SWITCHING_NOZZLE_SERVO_DWELL 2500         // Dwell time to wait for servo to make physical move
+#endif
+
+// Switch nozzles by bumping the toolhead. Requires EVENT_GCODE_TOOLCHANGE_#.
+//#define MECHANICAL_SWITCHING_NOZZLE
+
+/**
+ * Two separate X-carriages with extruders that connect to a moving part
+ * via a solenoid docking mechanism. Requires SOL1_PIN and SOL2_PIN.
+ */
+//#define PARKING_EXTRUDER
+
+/**
+ * Two separate X-carriages with extruders that connect to a moving part
+ * via a magnetic docking mechanism using movements and no solenoid
+ *
+ * project   : https://www.thingiverse.com/thing:3080893
+ * movements : https://youtu.be/0xCEiG9VS3k
+ *             https://youtu.be/Bqbcs0CU2FE
+ */
+//#define MAGNETIC_PARKING_EXTRUDER
+
+#if ANY(PARKING_EXTRUDER, MAGNETIC_PARKING_EXTRUDER)
+
+  #define PARKING_EXTRUDER_PARKING_X { -78, 184 }     // X positions for parking the extruders
+  #define PARKING_EXTRUDER_GRAB_DISTANCE 1            // (mm) Distance to move beyond the parking point to grab the extruder
+
+  #if ENABLED(PARKING_EXTRUDER)
+
+    #define PARKING_EXTRUDER_SOLENOIDS_INVERT           // If enabled, the solenoid is NOT magnetized with applied voltage
+    #define PARKING_EXTRUDER_SOLENOIDS_PINS_ACTIVE LOW  // LOW or HIGH pin signal energizes the coil
+    #define PARKING_EXTRUDER_SOLENOIDS_DELAY 250        // (ms) Delay for magnetic field. No delay if 0 or not defined.
+    //#define MANUAL_SOLENOID_CONTROL                   // Manual control of docking solenoids with M380 S / M381
+
+  #elif ENABLED(MAGNETIC_PARKING_EXTRUDER)
+
+    #define MPE_FAST_SPEED      9000      // (mm/min) Speed for travel before last distance point
+    #define MPE_SLOW_SPEED      4500      // (mm/min) Speed for last distance travel to park and couple
+    #define MPE_TRAVEL_DISTANCE   10      // (mm) Last distance point
+    #define MPE_COMPENSATION       0      // Offset Compensation -1 , 0 , 1 (multiplier) only for coupling
+
+  #endif
+
+#endif
+
+/**
+ * Switching Toolhead
+ *
+ * Support for swappable and dockable toolheads, such as
+ * the E3D Tool Changer. Toolheads are locked with a servo.
+ */
+//#define SWITCHING_TOOLHEAD
+
+/**
+ * Magnetic Switching Toolhead
+ *
+ * Support swappable and dockable toolheads with a magnetic
+ * docking mechanism using movement and no servo.
+ */
+//#define MAGNETIC_SWITCHING_TOOLHEAD
+
+/**
+ * Electromagnetic Switching Toolhead
+ *
+ * Parking for CoreXY / HBot kinematics.
+ * Toolheads are parked at one edge and held with an electromagnet.
+ * Supports more than 2 Toolheads. See https://youtu.be/JolbsAKTKf4
+ */
+//#define ELECTROMAGNETIC_SWITCHING_TOOLHEAD
+
+#if ANY(SWITCHING_TOOLHEAD, MAGNETIC_SWITCHING_TOOLHEAD, ELECTROMAGNETIC_SWITCHING_TOOLHEAD)
+  #define SWITCHING_TOOLHEAD_Y_POS          235         // (mm) Y position of the toolhead dock
+  #define SWITCHING_TOOLHEAD_Y_SECURITY      10         // (mm) Security distance Y axis
+  #define SWITCHING_TOOLHEAD_Y_CLEAR         60         // (mm) Minimum distance from dock for unobstructed X axis
+  #define SWITCHING_TOOLHEAD_X_POS          { 215, 0 }  // (mm) X positions for parking the extruders
+  #if ENABLED(SWITCHING_TOOLHEAD)
+    #define SWITCHING_TOOLHEAD_SERVO_NR       2         // Index of the servo connector
+    #define SWITCHING_TOOLHEAD_SERVO_ANGLES { 0, 180 }  // (degrees) Angles for Lock, Unlock
+  #elif ENABLED(MAGNETIC_SWITCHING_TOOLHEAD)
+    #define SWITCHING_TOOLHEAD_Y_RELEASE      5         // (mm) Security distance Y axis
+    #define SWITCHING_TOOLHEAD_X_SECURITY   { 90, 150 } // (mm) Security distance X axis (T0,T1)
+    //#define PRIME_BEFORE_REMOVE                       // Prime the nozzle before release from the dock
+    #if ENABLED(PRIME_BEFORE_REMOVE)
+      #define SWITCHING_TOOLHEAD_PRIME_MM           20  // (mm)   Extruder prime length
+      #define SWITCHING_TOOLHEAD_RETRACT_MM         10  // (mm)   Retract after priming length
+      #define SWITCHING_TOOLHEAD_PRIME_FEEDRATE    300  // (mm/min) Extruder prime feedrate
+      #define SWITCHING_TOOLHEAD_RETRACT_FEEDRATE 2400  // (mm/min) Extruder retract feedrate
+    #endif
+  #elif ENABLED(ELECTROMAGNETIC_SWITCHING_TOOLHEAD)
+    #define SWITCHING_TOOLHEAD_Z_HOP          2         // (mm) Z raise for switching
+  #endif
+#endif
+
+/**
+ * "Mixing Extruder"
+ *   - Adds G-codes M163 and M164 to set and "commit" the current mix factors.
+ *   - Extends the stepping routines to move multiple steppers in proportion to the mix.
+ *   - Optional support for Repetier Firmware's 'M164 S<index>' supporting virtual tools.
+ *   - This implementation supports up to two mixing extruders.
+ *   - Enable DIRECT_MIXING_IN_G1 for M165 and mixing in G1 (from Pia Taubert's reference implementation).
+ */
+//#define MIXING_EXTRUDER
+#if ENABLED(MIXING_EXTRUDER)
+  #define MIXING_STEPPERS 2        // Number of steppers in your mixing extruder
+  #define MIXING_VIRTUAL_TOOLS 16  // Use the Virtual Tool method with M163 and M164
+  //#define DIRECT_MIXING_IN_G1    // Allow ABCDHI mix factors in G1 movement commands
+  //#define GRADIENT_MIX           // Support for gradient mixing with M166 and LCD
+  //#define MIXING_PRESETS         // Assign 8 default V-tool presets for 2 or 3 MIXING_STEPPERS
+  #if ENABLED(GRADIENT_MIX)
+    //#define GRADIENT_VTOOL       // Add M166 T to use a V-tool index as a Gradient alias
+  #endif
+#endif
+
+// Offset of the extruders (uncomment if using more than one and relying on firmware to position when changing).
+// The offset has to be X=0, Y=0 for the extruder 0 hotend (default extruder).
+// For the other hotends it is their distance from the extruder 0 hotend.
+//#define HOTEND_OFFSET_X { 0.0, 20.00 } // (mm) relative X-offset for each nozzle
+//#define HOTEND_OFFSET_Y { 0.0, 5.00 }  // (mm) relative Y-offset for each nozzle
+//#define HOTEND_OFFSET_Z { 0.0, 0.00 }  // (mm) relative Z-offset for each nozzle
+
+// @section multi-material
+
+/**
+ * Multi-Material Unit
+ * Set to one of these predefined models:
+ *
+ *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
+ *   PRUSA_MMU2           : Průša MMU2
+ *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
+ *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
+ *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
+ *
+ * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
+ * See additional options in Configuration_adv.h.
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ */
+//#define MMU_MODEL PRUSA_MMU3
+
+// @section psu control
+
+/**
+ * Power Supply Control
+ *
+ * Enable and connect the power supply to the PS_ON_PIN.
+ * Specify whether the power supply is active HIGH or active LOW.
+ */
+//#define PSU_CONTROL
+//#define PSU_NAME "Power Supply"
+
+#if ENABLED(PSU_CONTROL)
+  //#define MKS_PWC                 // Using the MKS PWC add-on
+  //#define PS_OFF_CONFIRM          // Confirm dialog when power off
+  //#define PS_OFF_SOUND            // Beep 1s when power off
+  #define PSU_ACTIVE_STATE LOW      // Set 'LOW' for ATX, 'HIGH' for X-Box
+
+  //#define PSU_DEFAULT_OFF             // Keep power off until enabled directly with M80
+  //#define PSU_POWERUP_DELAY      250  // (ms) Delay for the PSU to warm up to full power
+  //#define LED_POWEROFF_TIMEOUT 10000  // (ms) Turn off LEDs after power-off, with this amount of delay
+
+  //#define PSU_OFF_REDUNDANT           // Second pin for redundant power control
+  //#define PSU_OFF_REDUNDANT_INVERTED  // Redundant pin state is the inverse of PSU_ACTIVE_STATE
+
+  //#define PS_ON1_PIN               6  // Redundant pin required to enable power in combination with PS_ON_PIN
+
+  //#define PS_ON_EDM_PIN            8  // External Device Monitoring pins for external power control relay feedback. Fault on mismatch.
+  //#define PS_ON1_EDM_PIN           9
+  #define PS_EDM_RESPONSE          250  // (ms) Time to allow for relay action
+
+  //#define POWER_OFF_TIMER               // Enable M81 D<seconds> to power off after a delay
+  //#define POWER_OFF_WAIT_FOR_COOLDOWN   // Enable M81 S to power off only after cooldown
+
+  //#define PSU_POWERUP_GCODE  "M355 S1"  // G-code to run after power-on (e.g., case light on)
+  //#define PSU_POWEROFF_GCODE "M355 S0"  // G-code to run before power-off (e.g., case light off)
+
+  //#define AUTO_POWER_CONTROL      // Enable automatic control of the PS_ON pin
+  #if ENABLED(AUTO_POWER_CONTROL)
+    #define AUTO_POWER_FANS           // Turn on PSU for fans
+    #define AUTO_POWER_E_FANS         // Turn on PSU for E Fans
+    #define AUTO_POWER_CONTROLLERFAN  // Turn on PSU for Controller Fan
+    #define AUTO_POWER_CHAMBER_FAN    // Turn on PSU for Chamber Fan
+    #define AUTO_POWER_COOLER_FAN     // Turn on PSU for Cooler Fan
+    #define AUTO_POWER_SPINDLE_LASER  // Turn on PSU for Spindle/Laser
+    #define POWER_TIMEOUT              30 // (s) Turn off power if the machine is idle for this duration
+    //#define POWER_OFF_DELAY          60 // (s) Delay of poweroff after M81 command. Useful to let fans run for extra time.
+  #endif
+  #if ANY(AUTO_POWER_CONTROL, POWER_OFF_WAIT_FOR_COOLDOWN)
+    //#define AUTO_POWER_E_TEMP        50 // (°C) PSU on if any extruder is over this temperature
+    //#define AUTO_POWER_CHAMBER_TEMP  30 // (°C) PSU on if the chamber is over this temperature
+    //#define AUTO_POWER_COOLER_TEMP   26 // (°C) PSU on if the cooler is over this temperature
+  #endif
+#endif
+
+//===========================================================================
+//============================= Thermal Settings ============================
+//===========================================================================
+// @section temperature
+
+/**
+ * Temperature Sensors:
+ *
+ * NORMAL IS 4.7kΩ PULLUP! Hotend sensors can use 1kΩ pullup with correct resistor and table.
+ *
+ * ================================================================
+ *  Analog Thermistors - 4.7kΩ pullup - Normal
+ * ================================================================
+ *     1 : 100kΩ EPCOS - Best choice for EPCOS thermistors
+ *   331 : 100kΩ Same as #1, but 3.3V scaled for MEGA
+ *   332 : 100kΩ Same as #1, but 3.3V scaled for DUE
+ *     2 : 200kΩ ATC Semitec 204GT-2
+ *   202 : 200kΩ Copymaster 3D
+ *     3 : ???Ω  Mendel-parts thermistor
+ *     4 : 10kΩ  Generic Thermistor !! DO NOT use for a hotend - it gives bad resolution at high temp. !!
+ *     5 : 100kΩ ATC Semitec 104GT-2/104NT-4-R025H42G - Used in ParCan, J-Head, and E3D, SliceEngineering 300°C
+ *   501 : 100kΩ Zonestar - Tronxy X3A
+ *   502 : 100kΩ Zonestar - used by hot bed in Zonestar Průša P802M
+ *   503 : 100kΩ Zonestar (Z8XM2) Heated Bed thermistor
+ *   504 : 100kΩ Zonestar P802QR2 (Part# QWG-104F-B3950) Hotend Thermistor
+ *   505 : 100kΩ Zonestar P802QR2 (Part# QWG-104F-3950) Bed Thermistor
+ *   512 : 100kΩ RPW-Ultra hotend
+ *     6 : 100kΩ EPCOS - Not as accurate as table #1 (created using a fluke thermocouple)
+ *     7 : 100kΩ Honeywell 135-104LAG-J01
+ *    71 : 100kΩ Honeywell 135-104LAF-J01
+ *     8 : 100kΩ Vishay 0603 SMD NTCS0603E3104FXT
+ *     9 : 100kΩ GE Sensing AL03006-58.2K-97-G1
+ *    10 : 100kΩ RS PRO 198-961
+ *    11 : 100kΩ Keenovo AC silicone mats, most Wanhao i3 machines - beta 3950, 1%
+ *    12 : 100kΩ Vishay 0603 SMD NTCS0603E3104FXT (#8) - calibrated for Makibox hot bed
+ *    13 : 100kΩ Hisens up to 300°C - for "Simple ONE" & "All In ONE" hotend - beta 3950, 1%
+ *    14 : 100kΩ  (R25), 4092K (beta25), 4.7kΩ pull-up, bed thermistor as used in Ender-5 S1
+ *    15 : 100kΩ Calibrated for JGAurora A5 hotend
+ *    17 : 100kΩ Dagoma NTC white thermistor
+ *    18 : 200kΩ ATC Semitec 204GT-2 Dagoma.Fr - MKS_Base_DKU001327
+ *    22 : 100kΩ GTM32 Pro vB - hotend - 4.7kΩ pullup to 3.3V and 220Ω to analog input
+ *    23 : 100kΩ GTM32 Pro vB - bed - 4.7kΩ pullup to 3.3v and 220Ω to analog input
+ *    30 : 100kΩ Kis3d Silicone heating mat 200W/300W with 6mm precision cast plate (EN AW 5083) NTC100K - beta 3950
+ *    60 : 100kΩ Maker's Tool Works Kapton Bed Thermistor - beta 3950
+ *    61 : 100kΩ Formbot/Vivedino 350°C Thermistor - beta 3950
+ *    66 : 4.7MΩ Dyze Design / Trianglelab T-D500 500°C High Temperature Thermistor
+ *    67 : 500kΩ SliceEngineering 450°C Thermistor
+ *    68 : PT100 Smplifier board from Dyze Design
+ *    70 : 100kΩ bq Hephestos 2
+ *    75 : 100kΩ Generic Silicon Heat Pad with NTC100K MGB18-104F39050L32
+ *   666 : 200kΩ Einstart S custom thermistor with 10k pullup.
+ *  2000 : 100kΩ Ultimachine Rambo TDK NTCG104LH104KT1 NTC100K motherboard Thermistor
+ *
+ * ================================================================
+ *  Analog Thermistors - 1kΩ pullup
+ *   Atypical, and requires changing out the 4.7kΩ pullup for 1kΩ.
+ *   (but gives greater accuracy and more stable PID)
+ * ================================================================
+ *    51 : 100kΩ EPCOS (1kΩ pullup)
+ *    52 : 200kΩ ATC Semitec 204GT-2 (1kΩ pullup)
+ *    55 : 100kΩ ATC Semitec 104GT-2 - Used in ParCan & J-Head (1kΩ pullup)
+ *
+ * ================================================================
+ *  Analog Thermistors - 10kΩ pullup - Atypical
+ * ================================================================
+ *    99 : 100kΩ Found on some Wanhao i3 machines with a 10kΩ pull-up resistor
+ *
+ * ================================================================
+ *  Analog RTDs (Pt100/Pt1000)
+ * ================================================================
+ *   110 : Pt100  with 1kΩ pullup (atypical)
+ *   147 : Pt100  with 4.7kΩ pullup
+ *  1010 : Pt1000 with 1kΩ pullup (atypical)
+ *  1022 : Pt1000 with 2.2kΩ pullup
+ *  1047 : Pt1000 with 4.7kΩ pullup (E3D)
+ *    20 : Pt100  with circuit in the Ultimainboard V2.x with mainboard ADC reference voltage = INA826 amplifier-board supply voltage.
+ *                NOTE: (1) Must use an ADC input with no pullup. (2) Some INA826 amplifiers are unreliable at 3.3V so consider using sensor 147, 110, or 21.
+ *    21 : Pt100  with circuit in the Ultimainboard V2.x with 3.3v ADC reference voltage (STM32, LPC176x....) and 5V INA826 amplifier board supply.
+ *                NOTE: ADC pins are not 5V tolerant. Not recommended because it's possible to damage the CPU by going over 500°C.
+ *   201 : Pt100  with circuit in Overlord, similar to Ultimainboard V2.x
+ *
+ * ================================================================
+ *  SPI RTD/Thermocouple Boards
+ * ================================================================
+ *    -5 : MAX31865 with Pt100/Pt1000, 2, 3, or 4-wire  (only for sensors 0-2 and bed)
+ *                  NOTE: You must uncomment/set the MAX31865_*_OHMS_n defines below.
+ *    -3 : MAX31855 with Thermocouple, -200°C to +700°C (only for sensors 0-2 and bed)
+ *    -2 : MAX6675  with Thermocouple, 0°C to +700°C    (only for sensors 0-2 and bed)
+ *
+ *  NOTE: Ensure TEMP_n_CS_PIN is set in your pins file for each TEMP_SENSOR_n using an SPI Thermocouple. By default,
+ *        Hardware SPI on the default serial bus is used. If you have also set TEMP_n_SCK_PIN and TEMP_n_MISO_PIN,
+ *        Software SPI will be used on those ports instead. You can force Hardware SPI on the default bus in the
+ *        Configuration_adv.h file. At this time, separate Hardware SPI buses for sensors are not supported.
+ *
+ * ================================================================
+ *  Analog Thermocouple Boards
+ * ================================================================
+ *    -4 : AD8495 with Thermocouple
+ *    -1 : AD595  with Thermocouple
+ *
+ * ================================================================
+ *  SoC internal sensor
+ * ================================================================
+ *   100 : SoC internal sensor
+ *
+ * ================================================================
+ *  Custom/Dummy/Other Thermal Sensors
+ * ================================================================
+ *     0 : not used
+ *  1000 : Custom - Specify parameters in Configuration_adv.h
+ *
+ *   !!! Use these for Testing or Development purposes. NEVER for production machine. !!!
+ *   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
+ *   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
+ */
+#define TEMP_SENSOR_0 1000
+#define TEMP_SENSOR_1 0
+#define TEMP_SENSOR_2 0
+#define TEMP_SENSOR_3 0
+#define TEMP_SENSOR_4 0
+#define TEMP_SENSOR_5 0
+#define TEMP_SENSOR_6 0
+#define TEMP_SENSOR_7 0
+#define TEMP_SENSOR_BED 1
+#define TEMP_SENSOR_PROBE 0
+#define TEMP_SENSOR_CHAMBER 0
+#define TEMP_SENSOR_COOLER 0
+#define TEMP_SENSOR_BOARD 0
+#define TEMP_SENSOR_SOC 0
+#define TEMP_SENSOR_REDUNDANT 0
+
+// Dummy thermistor constant temperature readings, for use with 998 and 999
+//#define DUMMY_THERMISTOR_998_VALUE  25
+//#define DUMMY_THERMISTOR_999_VALUE 100
+
+// Resistor values when using MAX31865 sensors (-5) on TEMP_SENSOR_0 / 1
+#if TEMP_SENSOR_IS_MAX_TC(0)
+  #define MAX31865_SENSOR_OHMS_0      100 // (Ω) Typically 100 or 1000 (PT100 or PT1000)
+  #define MAX31865_CALIBRATION_OHMS_0 430 // (Ω) Typically 430 for Adafruit PT100; 4300 for Adafruit PT1000
+#endif
+#if TEMP_SENSOR_IS_MAX_TC(1)
+  #define MAX31865_SENSOR_OHMS_1      100
+  #define MAX31865_CALIBRATION_OHMS_1 430
+#endif
+#if TEMP_SENSOR_IS_MAX_TC(2)
+  #define MAX31865_SENSOR_OHMS_2      100
+  #define MAX31865_CALIBRATION_OHMS_2 430
+#endif
+
+#if HAS_E_TEMP_SENSOR
+  #define TEMP_RESIDENCY_TIME         10  // (seconds) Time to wait for hotend to "settle" in M109
+  #define TEMP_WINDOW                  1  // (°C) Temperature proximity for the "temperature reached" timer
+  #define TEMP_HYSTERESIS              3  // (°C) Temperature proximity considered "close enough" to the target
+#endif
+
+#if TEMP_SENSOR_BED
+  #define TEMP_BED_RESIDENCY_TIME     10  // (seconds) Time to wait for bed to "settle" in M190
+  #define TEMP_BED_WINDOW              1  // (°C) Temperature proximity for the "temperature reached" timer
+  #define TEMP_BED_HYSTERESIS          3  // (°C) Temperature proximity considered "close enough" to the target
+#endif
+
+#if TEMP_SENSOR_CHAMBER
+  #define TEMP_CHAMBER_RESIDENCY_TIME 10  // (seconds) Time to wait for chamber to "settle" in M191
+  #define TEMP_CHAMBER_WINDOW          1  // (°C) Temperature proximity for the "temperature reached" timer
+  #define TEMP_CHAMBER_HYSTERESIS      3  // (°C) Temperature proximity considered "close enough" to the target
+#endif
+
+/**
+ * Redundant Temperature Sensor (TEMP_SENSOR_REDUNDANT)
+ *
+ * Use a temp sensor as a redundant sensor for another reading. Select an unused temperature sensor, and another
+ * sensor you'd like it to be redundant for. If the two thermistors differ by TEMP_SENSOR_REDUNDANT_MAX_DIFF (°C),
+ * the print will be aborted. Whichever sensor is selected will have its normal functions disabled; i.e. selecting
+ * the Bed sensor (-1) will disable bed heating/monitoring.
+ *
+ * For selecting source/target use: COOLER, PROBE, BOARD, CHAMBER, BED, E0, E1, E2, E3, E4, E5, E6, E7
+ */
+#if TEMP_SENSOR_REDUNDANT
+  #define TEMP_SENSOR_REDUNDANT_SOURCE    E1  // The sensor that will provide the redundant reading.
+  #define TEMP_SENSOR_REDUNDANT_TARGET    E0  // The sensor that we are providing a redundant reading for.
+  #define TEMP_SENSOR_REDUNDANT_MAX_DIFF  10  // (°C) Temperature difference that will trigger a print abort.
+#endif
+
+// Below this temperature the heater will be switched off
+// because it probably indicates a broken thermistor wire.
+#define HEATER_0_MINTEMP   5
+#define HEATER_1_MINTEMP   5
+#define HEATER_2_MINTEMP   5
+#define HEATER_3_MINTEMP   5
+#define HEATER_4_MINTEMP   5
+#define HEATER_5_MINTEMP   5
+#define HEATER_6_MINTEMP   5
+#define HEATER_7_MINTEMP   5
+#define BED_MINTEMP        5
+#define CHAMBER_MINTEMP    5
+
+// Above this temperature the heater will be switched off.
+// This can protect components from overheating, but NOT from shorts and failures.
+// (Use MINTEMP for thermistor short/failure protection.)
+#define HEATER_0_MAXTEMP 315
+#define HEATER_1_MAXTEMP 275
+#define HEATER_2_MAXTEMP 275
+#define HEATER_3_MAXTEMP 275
+#define HEATER_4_MAXTEMP 275
+#define HEATER_5_MAXTEMP 275
+#define HEATER_6_MAXTEMP 275
+#define HEATER_7_MAXTEMP 275
+#define BED_MAXTEMP      110
+#define CHAMBER_MAXTEMP  60
+
+/**
+ * Thermal Overshoot
+ * During heatup (and printing) the temperature can often "overshoot" the target by many degrees
+ * (especially before PID tuning). Setting the target temperature too close to MAXTEMP guarantees
+ * a MAXTEMP shutdown! Use these values to forbid temperatures being set too close to MAXTEMP.
+ */
+#define HOTEND_OVERSHOOT 15   // (°C) Forbid temperatures over MAXTEMP - OVERSHOOT
+#define BED_OVERSHOOT    10   // (°C) Forbid temperatures over MAXTEMP - OVERSHOOT
+#define COOLER_OVERSHOOT  2   // (°C) Forbid temperatures closer than OVERSHOOT
+
+//===========================================================================
+//============================= PID Settings ================================
+//===========================================================================
+
+// @section hotend temp
+
+/**
+ * Temperature Control
+ *
+ *  (NONE) : Bang-bang heating
+ * PIDTEMP : PID temperature control (~4.1K)
+ * MPCTEMP : Predictive Model temperature control. (~1.8K without auto-tune)
+ */
+#define PIDTEMP           // See the PID Tuning Guide at https://reprap.org/wiki/PID_Tuning
+//#define MPCTEMP         // See https://marlinfw.org/docs/features/model_predictive_control.html
+
+#define PID_MAX  255      // Limit hotend current while PID is active (see PID_FUNCTIONAL_RANGE below); 255=full current
+#define PID_K1     0.95   // Smoothing factor within any PID loop
+
+#if ENABLED(PIDTEMP)
+  //#define PID_DEBUG             // Print PID debug data to the serial port. Use 'M303 D' to toggle activation.
+  //#define PID_PARAMS_PER_HOTEND // Use separate PID parameters for each extruder (useful for mismatched extruders)
+                                  // Set/get with G-code: M301 E[extruder number, 0-2]
+
+  #if ENABLED(PID_PARAMS_PER_HOTEND)
+    // Specify up to one value per hotend here, according to your setup.
+    // If there are fewer values, the last one applies to the remaining hotends.
+    #define DEFAULT_Kp_LIST {  15.95,  15.95 }
+    #define DEFAULT_Ki_LIST {   1.30,   1.30 }
+    #define DEFAULT_Kd_LIST {  48.96,  48.96 }
+  #else
+    #define DEFAULT_Kp  15.95
+    #define DEFAULT_Ki   1.30
+    #define DEFAULT_Kd  48.96
+  #endif
+#else
+  #define BANG_MAX 255    // Limit hotend current while in bang-bang mode; 255=full current
+#endif
+
+/**
+ * Model Predictive Control for hotend
+ *
+ * Use a physical model of the hotend to control temperature. When configured correctly this gives
+ * better responsiveness and stability than PID and removes the need for PID_EXTRUSION_SCALING
+ * and PID_FAN_SCALING. Enable MPC_AUTOTUNE and use M306 T to autotune the model.
+ * @section mpc temp
+ */
+#if ENABLED(MPCTEMP)
+  #define MPC_AUTOTUNE                                // Include a method to do MPC auto-tuning (~6.3K bytes of flash)
+  #if ENABLED(MPC_AUTOTUNE)
+    //#define MPC_AUTOTUNE_DEBUG                      // Enable MPC debug logging (~870 bytes of flash)
+  #endif
+  //#define MPC_EDIT_MENU                             // Add MPC editing to the "Advanced Settings" menu. (~1.3K bytes of flash)
+  //#define MPC_AUTOTUNE_MENU                         // Add MPC auto-tuning to the "Advanced Settings" menu. (~350 bytes of flash)
+
+  #define MPC_MAX 255                                 // (0..255) Current to nozzle while MPC is active.
+  #define MPC_HEATER_POWER { 40.0f }                  // (W) Heat cartridge powers.
+
+  #define MPC_INCLUDE_FAN                             // Model the fan speed?
+
+  // Measured physical constants from M306
+  #define MPC_BLOCK_HEAT_CAPACITY { 16.7f }           // (J/K) Heat block heat capacities.
+  #define MPC_SENSOR_RESPONSIVENESS { 0.22f }         // (K/s per ∆K) Rate of change of sensor temperature from heat block.
+  #define MPC_AMBIENT_XFER_COEFF { 0.068f }           // (W/K) Heat transfer coefficients from heat block to room air with fan off.
+  #if ENABLED(MPC_INCLUDE_FAN)
+    #define MPC_AMBIENT_XFER_COEFF_FAN255 { 0.097f }  // (W/K) Heat transfer coefficients from heat block to room air with fan on full.
+  #endif
+
+  // For one fan and multiple hotends MPC needs to know how to apply the fan cooling effect.
+  #if ENABLED(MPC_INCLUDE_FAN)
+    //#define MPC_FAN_0_ALL_HOTENDS
+    //#define MPC_FAN_0_ACTIVE_HOTEND
+  #endif
+
+  // Filament Heat Capacity (joules/kelvin/mm)
+  // Set at runtime with M306 H<value>
+  #define FILAMENT_HEAT_CAPACITY_PERMM { 5.6e-3f }    // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
+                                                      // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
+                                                      // 0.00515 J/K/mm for 1.75mm ABS (0.0137 J/K/mm for 2.85mm ABS).
+                                                      // 0.00522 J/K/mm for 1.75mm Nylon (0.0138 J/K/mm for 2.85mm Nylon).
+
+  // Advanced options
+  #define MPC_SMOOTHING_FACTOR 0.5f                   // (0.0...1.0) Noisy temperature sensors may need a lower value for stabilization.
+  #define MPC_MIN_AMBIENT_CHANGE 1.0f                 // (K/s) Modeled ambient temperature rate of change, when correcting model inaccuracies.
+  #define MPC_STEADYSTATE 0.5f                        // (K/s) Temperature change rate for steady state logic to be enforced.
+
+  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center at first layer height.
+  #define MPC_TUNING_END_Z 10.0f                      // (mm) M306 Autotuning final Z position.
+#endif
+
+//===========================================================================
+//====================== PID > Bed Temperature Control ======================
+//===========================================================================
+
+// @section bed temp
+
+/**
+ * Max Bed Power
+ * Applies to all forms of bed control (PID, bang-bang, and bang-bang with hysteresis).
+ * When set to any value below 255, enables a form of PWM to the bed that acts like a divider
+ * so don't use it unless you are OK with PWM on your bed. (See the comment on enabling PIDTEMPBED)
+ */
+#define MAX_BED_POWER 255 // limits duty cycle to bed; 255=full current
+
+/**
+ * PID Bed Heating
+ *
+ * The PID frequency will be the same as the extruder PWM.
+ * If PID_dT is the default, and correct for the hardware/configuration, that means 7.689Hz,
+ * which is fine for driving a square wave into a resistive load and does not significantly
+ * impact FET heating. This also works fine on a Fotek SSR-10DA Solid State Relay into a 250W
+ * heater. If your configuration is significantly different than this and you don't understand
+ * the issues involved, don't use bed PID until someone else verifies that your hardware works.
+ *
+ * With this option disabled, bang-bang will be used. BED_LIMIT_SWITCHING enables hysteresis.
+ */
+#define PIDTEMPBED
+
+#if ENABLED(PIDTEMPBED)
+  //#define MIN_BED_POWER 0
+  //#define PID_BED_DEBUG // Print Bed PID debug data to the serial port.
+
+  // 120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+  // from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
+  #define DEFAULT_bedKp 110.38
+  #define DEFAULT_bedKi   6.12
+  #define DEFAULT_bedKd 497.3
+
+  // FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
+#else
+  //#define BED_LIMIT_SWITCHING   // Keep the bed temperature within BED_HYSTERESIS of the target
+#endif
+
+// Add 'M190 R T' for more gradual M190 R bed cooling.
+//#define BED_ANNEALING_GCODE
+
+//===========================================================================
+//==================== PID > Chamber Temperature Control ====================
+//===========================================================================
+
+/**
+ * PID Chamber Heating
+ *
+ * If this option is enabled set PID constants below.
+ * If this option is disabled, bang-bang will be used and CHAMBER_LIMIT_SWITCHING will enable
+ * hysteresis.
+ *
+ * The PID frequency will be the same as the extruder PWM.
+ * If PID_dT is the default, and correct for the hardware/configuration, that means 7.689Hz,
+ * which is fine for driving a square wave into a resistive load and does not significantly
+ * impact FET heating. This also works fine on a Fotek SSR-10DA Solid State Relay into a 200W
+ * heater. If your configuration is significantly different than this and you don't understand
+ * the issues involved, don't use chamber PID until someone else verifies that your hardware works.
+ * @section chamber temp
+ */
+//#define PIDTEMPCHAMBER
+//#define CHAMBER_LIMIT_SWITCHING
+
+/**
+ * Max Chamber Power
+ * Applies to all forms of chamber control (PID, bang-bang, and bang-bang with hysteresis).
+ * When set to any value below 255, enables a form of PWM to the chamber heater that acts like a divider
+ * so don't use it unless you are OK with PWM on your heater. (See the comment on enabling PIDTEMPCHAMBER)
+ */
+#define MAX_CHAMBER_POWER 255 // limits duty cycle to chamber heater; 255=full current
+
+#if ENABLED(PIDTEMPCHAMBER)
+  #define MIN_CHAMBER_POWER 0
+  //#define PID_CHAMBER_DEBUG // Print Chamber PID debug data to the serial port.
+
+  // Lasko "MyHeat Personal Heater" (200w) modified with a Fotek SSR-10DA to control only the heating element
+  // and placed inside the small Creality printer enclosure tent.
+  //
+  #define DEFAULT_chamberKp  37.04
+  #define DEFAULT_chamberKi   1.40
+  #define DEFAULT_chamberKd 655.17
+  // M309 P37.04 I1.04 D655.17
+
+  // FIND YOUR OWN: "M303 E-2 C8 S50" to run autotune on the chamber at 50 degreesC for 8 cycles.
+#endif // PIDTEMPCHAMBER
+
+// @section pid temp
+
+#if ANY(PIDTEMP, PIDTEMPBED, PIDTEMPCHAMBER)
+  //#define PID_OPENLOOP          // Puts PID in open loop. M104/M140 sets the output power from 0 to PID_MAX
+  //#define SLOW_PWM_HEATERS      // PWM with very low frequency (roughly 0.125Hz=8s) and minimum state time of approximately 1s useful for heaters driven by a relay
+  #define PID_FUNCTIONAL_RANGE 10 // If the temperature difference between the target temperature and the actual temperature
+                                  // is more than PID_FUNCTIONAL_RANGE then the PID will be shut off and the heater will be set to min/max.
+
+  #define PID_EDIT_MENU           // Add PID editing to the "Advanced Settings" menu. (~700 bytes of flash)
+  #define PID_AUTOTUNE_MENU       // Add PID auto-tuning to the "Advanced Settings" menu. (~250 bytes of flash)
+#endif
+
+// @section safety
+
+/**
+ * Prevent extrusion if the temperature is below EXTRUDE_MINTEMP.
+ * Add M302 to set the minimum extrusion temperature and/or turn
+ * cold extrusion prevention on and off.
+ *
+ * *** IT IS HIGHLY RECOMMENDED TO LEAVE THIS OPTION ENABLED! ***
+ */
+#define PREVENT_COLD_EXTRUSION
+#define EXTRUDE_MINTEMP 170
+
+/**
+ * Prevent a single extrusion longer than EXTRUDE_MAXLENGTH.
+ * Note: For Bowden Extruders make this large enough to allow load/unload.
+ */
+#define PREVENT_LENGTHY_EXTRUDE
+#define EXTRUDE_MAXLENGTH 500
+
+//===========================================================================
+//======================== Thermal Runaway Protection =======================
+//===========================================================================
+
+/**
+ * Thermal Protection provides additional protection to your printer from damage
+ * and fire. Marlin always includes safe min and max temperature ranges which
+ * protect against a broken or disconnected thermistor wire.
+ *
+ * The issue: If a thermistor falls out, it will report the much lower
+ * temperature of the air in the room, and the the firmware will keep
+ * the heater on.
+ *
+ * If you get "Thermal Runaway" or "Heating failed" errors the
+ * details can be tuned in Configuration_adv.h
+ */
+
+#define THERMAL_PROTECTION_HOTENDS // Enable thermal protection for all extruders
+#define THERMAL_PROTECTION_BED     // Enable thermal protection for the heated bed
+#define THERMAL_PROTECTION_CHAMBER // Enable thermal protection for the heated chamber
+#define THERMAL_PROTECTION_COOLER  // Enable thermal protection for the laser cooling
+
+//===========================================================================
+//============================= Mechanical Settings =========================
+//===========================================================================
+
+// @section machine
+
+// Enable one of the options below for CoreXY, CoreXZ, or CoreYZ kinematics,
+// either in the usual order or reversed
+//#define COREXY
+//#define COREXZ
+//#define COREYZ
+//#define COREYX
+//#define COREZX
+//#define COREZY
+
+//
+// MarkForged Kinematics
+// See https://reprap.org/forum/read.php?152,504042
+//
+//#define MARKFORGED_XY
+//#define MARKFORGED_YX
+#if ANY(MARKFORGED_XY, MARKFORGED_YX)
+  //#define MARKFORGED_INVERSE  // Enable for an inverted Markforged kinematics belt path
+#endif
+
+// Enable for a belt style printer with endless "Z" motion
+//#define BELTPRINTER
+
+// Enable for Polargraph Kinematics
+//#define POLARGRAPH
+#if ENABLED(POLARGRAPH)
+  #define POLARGRAPH_MAX_BELT_LEN  1035.0 // (mm) Belt length at full extension. Override with M665 H.
+  #define DEFAULT_SEGMENTS_PER_SECOND 5   // Move segmentation based on duration
+  #define PEN_UP_DOWN_MENU                // Add "Pen Up" and "Pen Down" to the MarlinUI menu
+#endif
+
+// @section delta
+
+// Enable for DELTA kinematics and configure below
+//#define DELTA
+#if ENABLED(DELTA)
+
+  // Make delta curves from many straight lines (linear interpolation).
+  // This is a trade-off between visible corners (not enough segments)
+  // and processor overload (too many expensive sqrt calls).
+  #define DEFAULT_SEGMENTS_PER_SECOND 200
+
+  // After homing move down to a height where XY movement is unconstrained
+  //#define DELTA_HOME_TO_SAFE_ZONE
+
+  // Delta calibration menu
+  // Add three-point calibration to the MarlinUI menu.
+  // See http://minow.blogspot.com/index.html#4918805519571907051
+  //#define DELTA_CALIBRATION_MENU
+
+  // G33 Delta Auto-Calibration. Enable EEPROM_SETTINGS to store results.
+  //#define DELTA_AUTO_CALIBRATION
+
+  #if ENABLED(DELTA_AUTO_CALIBRATION)
+    // Default number of probe points : n*n (1 -> 7)
+    #define DELTA_CALIBRATION_DEFAULT_POINTS 4
+  #endif
+
+  #if ANY(DELTA_AUTO_CALIBRATION, DELTA_CALIBRATION_MENU)
+    // Step size for paper-test probing
+    #define PROBE_MANUALLY_STEP 0.05      // (mm)
+  #endif
+
+  // Print surface diameter/2 minus unreachable space (avoid collisions with vertical towers).
+  #define PRINTABLE_RADIUS       140.0    // (mm)
+
+  // Maximum reachable area
+  #define DELTA_MAX_RADIUS       140.0    // (mm)
+
+  // Center-to-center distance of the holes in the diagonal push rods.
+  #define DELTA_DIAGONAL_ROD 250.0        // (mm)
+
+  // Distance between bed and nozzle Z home position
+  #define DELTA_HEIGHT 250.00             // (mm) Get this value from G33 auto calibrate
+
+  #define DELTA_ENDSTOP_ADJ { 0.0, 0.0, 0.0 } // (mm) Get these values from G33 auto calibrate
+
+  // Horizontal distance bridged by diagonal push rods when effector is centered.
+  #define DELTA_RADIUS 124.0              // (mm) Get this value from G33 auto calibrate
+
+  // Trim adjustments for individual towers
+  // tower angle corrections for X and Y tower / rotate XYZ so Z tower angle = 0
+  // measured in degrees anticlockwise looking from above the printer
+  #define DELTA_TOWER_ANGLE_TRIM { 0.0, 0.0, 0.0 } // (mm) Get these values from G33 auto calibrate
+
+  // Delta radius and diagonal rod adjustments
+  //#define DELTA_RADIUS_TRIM_TOWER       { 0.0, 0.0, 0.0 } // (mm)
+  //#define DELTA_DIAGONAL_ROD_TRIM_TOWER { 0.0, 0.0, 0.0 } // (mm)
+#endif
+
+// @section scara
+
+/**
+ * MORGAN_SCARA was developed by QHARLEY in South Africa in 2012-2013.
+ * Implemented and slightly reworked by JCERNY in June, 2014.
+ *
+ * Mostly Printed SCARA is an open source design by Tyler Williams. See:
+ *   https://www.thingiverse.com/thing:2487048
+ *   https://www.thingiverse.com/thing:1241491
+ */
+//#define MORGAN_SCARA
+//#define MP_SCARA
+#if ANY(MORGAN_SCARA, MP_SCARA)
+  // If movement is choppy try lowering this value
+  #define DEFAULT_SEGMENTS_PER_SECOND 200
+
+  // Length of inner and outer support arms. Measure arm lengths precisely.
+  #define SCARA_LINKAGE_1 150       // (mm)
+  #define SCARA_LINKAGE_2 150       // (mm)
+
+  // SCARA tower offset (position of Tower relative to bed zero position)
+  // This needs to be reasonably accurate as it defines the printbed position in the SCARA space.
+  #define SCARA_OFFSET_X  100       // (mm)
+  #define SCARA_OFFSET_Y  -56       // (mm)
+
+  #if ENABLED(MORGAN_SCARA)
+
+    //#define DEBUG_SCARA_KINEMATICS
+    #define FEEDRATE_SCALING        // Convert XY feedrate from mm/s to degrees/s on the fly
+
+    // Radius around the center where the arm cannot reach
+    #define MIDDLE_DEAD_ZONE_R   0  // (mm)
+
+  #elif ENABLED(MP_SCARA)
+
+    #define SCARA_OFFSET_THETA1  12 // degrees
+    #define SCARA_OFFSET_THETA2 131 // degrees
+
+  #endif
+
+#endif
+
+// @section tpara
+
+// Enable for TPARA kinematics and configure below
+//#define AXEL_TPARA
+#if ENABLED(AXEL_TPARA)
+  #define DEBUG_TPARA_KINEMATICS
+  #define DEFAULT_SEGMENTS_PER_SECOND 200
+
+  // Length of inner and outer support arms. Measure arm lengths precisely.
+  #define TPARA_LINKAGE_1 120     // (mm)
+  #define TPARA_LINKAGE_2 120     // (mm)
+
+  // TPARA tower offset (position of Tower relative to bed zero position)
+  // This needs to be reasonably accurate as it defines the printbed position in the TPARA space.
+  #define TPARA_OFFSET_X    0     // (mm)
+  #define TPARA_OFFSET_Y    0     // (mm)
+  #define TPARA_OFFSET_Z    0     // (mm)
+
+  #define FEEDRATE_SCALING        // Convert XY feedrate from mm/s to degrees/s on the fly
+
+  // Radius around the center where the arm cannot reach
+  #define MIDDLE_DEAD_ZONE_R   0  // (mm)
+#endif
+
+// @section polar
+
+/**
+ * POLAR Kinematics
+ *  developed by Kadir ilkimen for PolarBear CNC and babyBear
+ *  https://github.com/kadirilkimen/Polar-Bear-Cnc-Machine
+ *  https://github.com/kadirilkimen/babyBear-3D-printer
+ *
+ * A polar machine can have different configurations.
+ * This kinematics is only compatible with the following configuration:
+ *        X : Independent linear
+ *   Y or B : Polar
+ *        Z : Independent linear
+ *
+ * For example, PolarBear has CoreXZ plus Polar Y or B.
+ *
+ * Motion problem for Polar axis near center / origin:
+ *
+ * 3D printing:
+ * Movements very close to the center of the polar axis take more time than others.
+ * This brief delay results in more material deposition due to the pressure in the nozzle.
+ *
+ * Current Kinematics and feedrate scaling deals with this by making the movement as fast
+ * as possible. It works for slow movements but doesn't work well with fast ones. A more
+ * complicated extrusion compensation must be implemented.
+ *
+ * Ideally, it should estimate that a long rotation near the center is ahead and will cause
+ * unwanted deposition. Therefore it can compensate the extrusion beforehand.
+ *
+ * Laser cutting:
+ * Same thing would be a problem for laser engraving too. As it spends time rotating at the
+ * center point, more likely it will burn more material than it should. Therefore similar
+ * compensation would be implemented for laser-cutting operations.
+ *
+ * Milling:
+ * This shouldn't be a problem for cutting/milling operations.
+ */
+//#define POLAR
+#if ENABLED(POLAR)
+  #define DEFAULT_SEGMENTS_PER_SECOND 180   // If movement is choppy try lowering this value
+  #define PRINTABLE_RADIUS 82.0f            // (mm) Maximum travel of X axis
+
+  // Movements fall inside POLAR_FAST_RADIUS are assigned the highest possible feedrate
+  // to compensate unwanted deposition related to the near-origin motion problem.
+  #define POLAR_FAST_RADIUS 3.0f            // (mm)
+
+  // Radius which is unreachable by the tool.
+  // Needed if the tool is not perfectly aligned to the center of the polar axis.
+  #define POLAR_CENTER_OFFSET 0.0f          // (mm)
+
+  #define FEEDRATE_SCALING                  // Convert XY feedrate from mm/s to degrees/s on the fly
+#endif
+
+// @section machine
+
+// Articulated robot (arm). Joints are directly mapped to axes with no kinematics.
+//#define ARTICULATED_ROBOT_ARM
+
+// For a hot wire cutter with parallel horizontal axes (X, I) where the heights of the two wire
+// ends are controlled by parallel axes (Y, J). Joints are directly mapped to axes (no kinematics).
+//#define FOAMCUTTER_XYUV
+
+//===========================================================================
+//============================== Endstop Settings ===========================
+//===========================================================================
+
+// @section endstops
+
+// Enable pullup for all endstops to prevent a floating state
+#define ENDSTOPPULLUPS
+#if DISABLED(ENDSTOPPULLUPS)
+  // Disable ENDSTOPPULLUPS to set pullups individually
+  //#define ENDSTOPPULLUP_XMIN
+  //#define ENDSTOPPULLUP_YMIN
+  //#define ENDSTOPPULLUP_ZMIN
+  //#define ENDSTOPPULLUP_IMIN
+  //#define ENDSTOPPULLUP_JMIN
+  //#define ENDSTOPPULLUP_KMIN
+  //#define ENDSTOPPULLUP_UMIN
+  //#define ENDSTOPPULLUP_VMIN
+  //#define ENDSTOPPULLUP_WMIN
+  //#define ENDSTOPPULLUP_XMAX
+  //#define ENDSTOPPULLUP_YMAX
+  //#define ENDSTOPPULLUP_ZMAX
+  //#define ENDSTOPPULLUP_IMAX
+  //#define ENDSTOPPULLUP_JMAX
+  //#define ENDSTOPPULLUP_KMAX
+  //#define ENDSTOPPULLUP_UMAX
+  //#define ENDSTOPPULLUP_VMAX
+  //#define ENDSTOPPULLUP_WMAX
+  //#define ENDSTOPPULLUP_ZMIN_PROBE
+#endif
+
+// Enable pulldown for all endstops to prevent a floating state
+//#define ENDSTOPPULLDOWNS
+#if DISABLED(ENDSTOPPULLDOWNS)
+  // Disable ENDSTOPPULLDOWNS to set pulldowns individually
+  //#define ENDSTOPPULLDOWN_XMIN
+  //#define ENDSTOPPULLDOWN_YMIN
+  //#define ENDSTOPPULLDOWN_ZMIN
+  //#define ENDSTOPPULLDOWN_IMIN
+  //#define ENDSTOPPULLDOWN_JMIN
+  //#define ENDSTOPPULLDOWN_KMIN
+  //#define ENDSTOPPULLDOWN_UMIN
+  //#define ENDSTOPPULLDOWN_VMIN
+  //#define ENDSTOPPULLDOWN_WMIN
+  //#define ENDSTOPPULLDOWN_XMAX
+  //#define ENDSTOPPULLDOWN_YMAX
+  //#define ENDSTOPPULLDOWN_ZMAX
+  //#define ENDSTOPPULLDOWN_IMAX
+  //#define ENDSTOPPULLDOWN_JMAX
+  //#define ENDSTOPPULLDOWN_KMAX
+  //#define ENDSTOPPULLDOWN_UMAX
+  //#define ENDSTOPPULLDOWN_VMAX
+  //#define ENDSTOPPULLDOWN_WMAX
+  //#define ENDSTOPPULLDOWN_ZMIN_PROBE
+#endif
+
+/**
+ * Endstop "Hit" State
+ * Set to the state (HIGH or LOW) that applies to each endstop.
+ */
+#define X_MIN_ENDSTOP_HIT_STATE HIGH
+#define X_MAX_ENDSTOP_HIT_STATE HIGH
+#define Y_MIN_ENDSTOP_HIT_STATE HIGH
+#define Y_MAX_ENDSTOP_HIT_STATE HIGH
+#define Z_MIN_ENDSTOP_HIT_STATE HIGH
+#define Z_MAX_ENDSTOP_HIT_STATE HIGH
+#define I_MIN_ENDSTOP_HIT_STATE HIGH
+#define I_MAX_ENDSTOP_HIT_STATE HIGH
+#define J_MIN_ENDSTOP_HIT_STATE HIGH
+#define J_MAX_ENDSTOP_HIT_STATE HIGH
+#define K_MIN_ENDSTOP_HIT_STATE HIGH
+#define K_MAX_ENDSTOP_HIT_STATE HIGH
+#define U_MIN_ENDSTOP_HIT_STATE HIGH
+#define U_MAX_ENDSTOP_HIT_STATE HIGH
+#define V_MIN_ENDSTOP_HIT_STATE HIGH
+#define V_MAX_ENDSTOP_HIT_STATE HIGH
+#define W_MIN_ENDSTOP_HIT_STATE HIGH
+#define W_MAX_ENDSTOP_HIT_STATE HIGH
+#define Z_MIN_PROBE_ENDSTOP_HIT_STATE HIGH
+
+// Enable this feature if all enabled endstop pins are interrupt-capable.
+// This will remove the need to poll the interrupt pins, saving many CPU cycles.
+//#define ENDSTOP_INTERRUPTS_FEATURE
+
+/**
+ * Endstop Noise Threshold
+ *
+ * Enable if your probe or endstops falsely trigger due to noise.
+ *
+ * - Higher values may affect repeatability or accuracy of some bed probes.
+ * - To fix noise install a 100nF ceramic capacitor in parallel with the switch.
+ * - This feature is not required for common micro-switches mounted on PCBs
+ *   based on the Makerbot design, which already have the 100nF capacitor.
+ *
+ * :[2,3,4,5,6,7]
+ */
+//#define ENDSTOP_NOISE_THRESHOLD 2
+
+// Check for stuck or disconnected endstops during homing moves.
+//#define DETECT_BROKEN_ENDSTOP
+
+//=============================================================================
+//============================== Movement Settings ============================
+//=============================================================================
+// @section motion
+
+/**
+ * Default Settings
+ *
+ * These settings can be reset by M502
+ *
+ * Note that if EEPROM is enabled, saved values will override these.
+ */
+
+/**
+ * With this option each E stepper can have its own factors for the
+ * following movement settings. If fewer factors are given than the
+ * total number of extruders, the last value applies to the rest.
+ */
+//#define DISTINCT_E_FACTORS
+
+/**
+ * Default Axis Steps Per Unit (linear=steps/mm, rotational=steps/°)
+ * Override with M92 (when enabled below)
+ *                                      X, Y, Z [, I [, J [, K...]]], E0 [, E1[, E2...]]
+ */
+#define DEFAULT_AXIS_STEPS_PER_UNIT   { 80, 80, 800, 691.5 }
+
+/**
+ * Enable support for M92. Disable to save at least ~530 bytes of flash.
+ */
+#define EDITABLE_STEPS_PER_UNIT
+
+/**
+ * Default Max Feed Rate (linear=mm/s, rotational=°/s)
+ * Override with M203
+ *                                      X, Y, Z [, I [, J [, K...]]], E0 [, E1[, E2...]]
+ */
+#define DEFAULT_MAX_FEEDRATE          { 300, 300, 10, 100 }
+
+//#define LIMITED_MAX_FR_EDITING        // Limit edit via M203 or LCD to DEFAULT_MAX_FEEDRATE * 2
+#if ENABLED(LIMITED_MAX_FR_EDITING)
+  #define MAX_FEEDRATE_EDIT_VALUES    { 600, 600, 10, 50 } // ...or, set your own edit limits
+#endif
+
+/**
+ * Default Max Acceleration (speed change with time) (linear=mm/(s^2), rotational=°/(s^2))
+ * (Maximum start speed for accelerated moves)
+ * Override with M201
+ *                                      X, Y, Z [, I [, J [, K...]]], E0 [, E1[, E2...]]
+ */
+#define DEFAULT_MAX_ACCELERATION      { 3000, 3000, 100, 5000 }
+
+//#define LIMITED_MAX_ACCEL_EDITING     // Limit edit via M201 or LCD to DEFAULT_MAX_ACCELERATION * 2
+#if ENABLED(LIMITED_MAX_ACCEL_EDITING)
+  #define MAX_ACCEL_EDIT_VALUES       { 6000, 6000, 200, 20000 } // ...or, set your own edit limits
+#endif
+
+/**
+ * Default Acceleration (speed change with time) (linear=mm/(s^2), rotational=°/(s^2))
+ * Override with M204
+ *
+ *   M204 P    Acceleration
+ *   M204 R    Retract Acceleration
+ *   M204 T    Travel Acceleration
+ *   M204 I    Angular Acceleration
+ *   M204 J    Angular Travel Acceleration
+ */
+#define DEFAULT_ACCELERATION                  3000  // X, Y, Z ... and E acceleration for printing moves
+#define DEFAULT_RETRACT_ACCELERATION          3000  // E acceleration for retracts
+#define DEFAULT_TRAVEL_ACCELERATION           3000  // X, Y, Z ... acceleration for travel (non printing) moves
+#if ENABLED(AXIS4_ROTATES)
+  #define DEFAULT_ANGULAR_ACCELERATION        3000  // I, J, K acceleration for rotational-only printing moves
+  #define DEFAULT_ANGULAR_TRAVEL_ACCELERATION 3000  // I, J, K acceleration for rotational-only travel (non printing) moves
+#endif
+
+/**
+ * Default Jerk limits (mm/s)
+ * Override with M205 X Y Z . . . E
+ *
+ * "Jerk" specifies the minimum speed change that requires acceleration.
+ * When changing speed and direction, if the difference is less than the
+ * value set here, it may happen instantaneously.
+ */
+#define CLASSIC_JERK
+#if ENABLED(CLASSIC_JERK)
+  #define DEFAULT_XJERK  5.0
+  #define DEFAULT_YJERK  5.0
+  #define DEFAULT_ZJERK  0.4
+  #define DEFAULT_EJERK 10.0
+  //#define DEFAULT_IJERK  0.3
+  //#define DEFAULT_JJERK  0.3
+  //#define DEFAULT_KJERK  0.3
+  //#define DEFAULT_UJERK  0.3
+  //#define DEFAULT_VJERK  0.3
+  //#define DEFAULT_WJERK  0.3
+
+  //#define TRAVEL_EXTRA_XYJERK 0.0     // Additional jerk allowance for all travel moves
+
+  //#define LIMITED_JERK_EDITING        // Limit edit via M205 or LCD to DEFAULT_aJERK * 2
+  #if ENABLED(LIMITED_JERK_EDITING)
+    #define MAX_JERK_EDIT_VALUES { 20, 20, 0.6, 10 } // ...or, set your own edit limits
+  #endif
+#endif
+
+/**
+ * Junction Deviation Factor
+ *
+ * See:
+ *   https://reprap.org/forum/read.php?1,739819
+ *   https://blog.kyneticcnc.com/2018/10/computing-junction-deviation-for-marlin.html
+ */
+#if DISABLED(CLASSIC_JERK)
+  #define JUNCTION_DEVIATION_MM 0.013 // (mm) Distance from real junction edge
+  #define JD_HANDLE_SMALL_SEGMENTS    // Use curvature estimation instead of just the junction angle
+                                      // for small segments (< 1mm) with large junction angles (> 135°).
+#endif
+
+/**
+ * S-Curve Acceleration
+ *
+ * This option eliminates vibration during printing by fitting a Bézier
+ * curve to move acceleration, producing much smoother direction changes.
+ *
+ * See https://github.com/synthetos/TinyG/wiki/Jerk-Controlled-Motion-Explained
+ */
+//#define S_CURVE_ACCELERATION
+
+//===========================================================================
+//============================= Z Probe Options =============================
+//===========================================================================
+// @section probes
+
+//
+// See https://marlinfw.org/docs/configuration/probes.html
+//
+
+/**
+ * Enable this option for a probe connected to the Z-MIN pin.
+ * The probe replaces the Z-MIN endstop and is used for Z homing.
+ * (Automatically enables USE_PROBE_FOR_Z_HOMING.)
+ */
+//#define Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN
+
+// Force the use of the probe for Z-axis homing
+#define USE_PROBE_FOR_Z_HOMING
+
+/**
+ * Z_MIN_PROBE_PIN
+ *
+ * Override this pin only if the probe cannot be connected to
+ * the default Z_MIN_PROBE_PIN for the selected MOTHERBOARD.
+ *
+ *  - The simplest option is to use a free endstop connector.
+ *  - Use 5V for powered (usually inductive) sensors.
+ *
+ *  - For simple switches...
+ *    - Normally-closed (NC) also connect to GND.
+ *    - Normally-open (NO) also connect to 5V.
+ */
+//#define Z_MIN_PROBE_PIN -1
+
+/**
+ * Probe Type
+ *
+ * Allen Key Probes, Servo Probes, Z-Sled Probes, FIX_MOUNTED_PROBE, etc.
+ * Activate one of these to use Auto Bed Leveling below.
+ */
+
+/**
+ * The "Manual Probe" provides a means to do "Auto" Bed Leveling without a probe.
+ * Use G29 repeatedly, adjusting the Z height at each point with movement commands
+ * or (with LCD_BED_LEVELING) the LCD controller.
+ */
+//#define PROBE_MANUALLY
+
+/**
+ * A Fix-Mounted Probe either doesn't deploy or needs manual deployment.
+ *   (e.g., an inductive probe or a nozzle-based probe-switch.)
+ */
+#define FIX_MOUNTED_PROBE
+
+/**
+ * Use the nozzle as the probe, as with a conductive
+ * nozzle system or a piezo-electric smart effector.
+ */
+//#define NOZZLE_AS_PROBE
+
+/**
+ * Z Servo Probe, such as an endstop switch on a rotating arm.
+ */
+//#define Z_PROBE_SERVO_NR 0
+#ifdef Z_PROBE_SERVO_NR
+  //#define Z_SERVO_ANGLES { 70, 0 }      // Z Servo Deploy and Stow angles
+  //#define Z_SERVO_MEASURE_ANGLE 45      // Use if the servo must move to a "free" position for measuring after deploy
+  //#define Z_SERVO_INTERMEDIATE_STOW     // Stow the probe between points
+  //#define Z_SERVO_DEACTIVATE_AFTER_STOW // Deactivate the servo when probe is stowed
+#endif
+
+/**
+ * The BLTouch probe uses a Hall effect sensor and emulates a servo.
+ */
+//#define BLTOUCH
+
+/**
+ * MagLev V4 probe by MDD
+ *
+ * This probe is deployed and activated by powering a built-in electromagnet.
+ */
+//#define MAGLEV4
+#if ENABLED(MAGLEV4)
+  //#define MAGLEV_TRIGGER_PIN 11     // Set to the connected digital output
+  #define MAGLEV_TRIGGER_DELAY 15     // Changing this risks overheating the coil
+#endif
+
+/**
+ * Touch-MI Probe by hotends.fr
+ *
+ * This probe is deployed and activated by moving the X-axis to a magnet at the edge of the bed.
+ * By default, the magnet is assumed to be on the left and activated by a home. If the magnet is
+ * on the right, enable and set TOUCH_MI_DEPLOY_XPOS to the deploy position.
+ *
+ * Also requires: BABYSTEPPING, BABYSTEP_ZPROBE_OFFSET, Z_SAFE_HOMING,
+ *                and a minimum Z_CLEARANCE_FOR_HOMING of 10.
+ */
+//#define TOUCH_MI_PROBE
+#if ENABLED(TOUCH_MI_PROBE)
+  #define TOUCH_MI_RETRACT_Z 0.5                  // Height at which the probe retracts
+  //#define TOUCH_MI_DEPLOY_XPOS (X_MAX_BED + 2)  // For a magnet on the right side of the bed
+  //#define TOUCH_MI_MANUAL_DEPLOY                // For manual deploy (LCD menu)
+#endif
+
+/**
+ * Bed Distance Sensor
+ *
+ * Measures the distance from bed to nozzle with accuracy of 0.01mm.
+ * For information about this sensor https://github.com/markniu/Bed_Distance_sensor
+ * Uses I2C port, so it requires I2C library markyue/Panda_SoftMasterI2C.
+ */
+//#define BD_SENSOR
+#if ENABLED(BD_SENSOR)
+  //#define BD_SENSOR_PROBE_NO_STOP // Probe bed without stopping at each probe point
+#endif
+
+/**
+ * BIQU MicroProbe
+ *
+ * A lightweight, solenoid-driven probe.
+ * For information about this sensor https://github.com/bigtreetech/MicroProbe
+ *
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
+ */
+//#define BIQU_MICROPROBE_V1  // Triggers HIGH
+//#define BIQU_MICROPROBE_V2  // Triggers LOW
+
+// A probe that is deployed and stowed with a solenoid pin (SOL1_PIN)
+//#define SOLENOID_PROBE
+
+// A sled-mounted probe like those designed by Charles Bell.
+//#define Z_PROBE_SLED
+//#define SLED_DOCKING_OFFSET 5  // The extra distance the X axis must travel to pickup the sled. 0 should be fine but you can push it further if you'd like.
+
+// A probe deployed by moving the x-axis, such as the Wilson II's rack-and-pinion probe designed by Marty Rice.
+//#define RACK_AND_PINION_PROBE
+#if ENABLED(RACK_AND_PINION_PROBE)
+  #define Z_PROBE_DEPLOY_X  X_MIN_POS
+  #define Z_PROBE_RETRACT_X X_MAX_POS
+#endif
+
+/**
+ * Magnetically Mounted Probe
+ * For probes such as Euclid, Klicky, Klackender, etc.
+ */
+//#define MAG_MOUNTED_PROBE
+#if ENABLED(MAG_MOUNTED_PROBE)
+  #define PROBE_DEPLOY_FEEDRATE (133*60)  // (mm/min) Probe deploy speed
+  #define PROBE_STOW_FEEDRATE   (133*60)  // (mm/min) Probe stow speed
+
+  #define MAG_MOUNTED_DEPLOY_1 { PROBE_DEPLOY_FEEDRATE, { 245, 114, 30 } }  // Move to side Dock & Attach probe
+  #define MAG_MOUNTED_DEPLOY_2 { PROBE_DEPLOY_FEEDRATE, { 210, 114, 30 } }  // Move probe off dock
+  #define MAG_MOUNTED_DEPLOY_3 { PROBE_DEPLOY_FEEDRATE, {   0,   0,  0 } }  // Extra move if needed
+  #define MAG_MOUNTED_DEPLOY_4 { PROBE_DEPLOY_FEEDRATE, {   0,   0,  0 } }  // Extra move if needed
+  #define MAG_MOUNTED_DEPLOY_5 { PROBE_DEPLOY_FEEDRATE, {   0,   0,  0 } }  // Extra move if needed
+  #define MAG_MOUNTED_STOW_1   { PROBE_STOW_FEEDRATE,   { 245, 114, 20 } }  // Move to dock
+  #define MAG_MOUNTED_STOW_2   { PROBE_STOW_FEEDRATE,   { 245, 114,  0 } }  // Place probe beside remover
+  #define MAG_MOUNTED_STOW_3   { PROBE_STOW_FEEDRATE,   { 230, 114,  0 } }  // Side move to remove probe
+  #define MAG_MOUNTED_STOW_4   { PROBE_STOW_FEEDRATE,   { 210, 114, 20 } }  // Side move to remove probe
+  #define MAG_MOUNTED_STOW_5   { PROBE_STOW_FEEDRATE,   {   0,   0,  0 } }  // Extra move if needed
+#endif
+
+// Duet Smart Effector (for delta printers) - https://docs.duet3d.com/en/Duet3D_hardware/Accessories/Smart_Effector
+// When the pin is defined you can use M672 to set/reset the probe sensitivity.
+//#define DUET_SMART_EFFECTOR
+#if ENABLED(DUET_SMART_EFFECTOR)
+  #define SMART_EFFECTOR_MOD_PIN  -1  // Connect a GPIO pin to the Smart Effector MOD pin
+#endif
+
+/**
+ * Use StallGuard2 to probe the bed with the nozzle.
+ * Requires stallGuard-capable Trinamic stepper drivers.
+ * CAUTION: This can damage machines with Z lead screws.
+ *          Take extreme care when setting up this feature.
+ */
+//#define SENSORLESS_PROBING
+
+/**
+ * Allen key retractable z-probe as seen on many Kossel delta printers - https://reprap.org/wiki/Kossel#Autolevel_probe
+ * Deploys by touching z-axis belt. Retracts by pushing the probe down.
+ */
+//#define Z_PROBE_ALLEN_KEY
+#if ENABLED(Z_PROBE_ALLEN_KEY)
+  // 2 or 3 sets of coordinates for deploying and retracting the spring loaded touch probe on G29,
+  // if servo actuated touch probe is not defined. Uncomment as appropriate for your printer/probe.
+
+  #define Z_PROBE_ALLEN_KEY_DEPLOY_1 { 30.0, PRINTABLE_RADIUS, 100.0 }
+  #define Z_PROBE_ALLEN_KEY_DEPLOY_1_FEEDRATE XY_PROBE_FEEDRATE
+
+  #define Z_PROBE_ALLEN_KEY_DEPLOY_2 { 0.0, PRINTABLE_RADIUS, 100.0 }
+  #define Z_PROBE_ALLEN_KEY_DEPLOY_2_FEEDRATE (XY_PROBE_FEEDRATE)/10
+
+  #define Z_PROBE_ALLEN_KEY_DEPLOY_3 { 0.0, (PRINTABLE_RADIUS) * 0.75, 100.0 }
+  #define Z_PROBE_ALLEN_KEY_DEPLOY_3_FEEDRATE XY_PROBE_FEEDRATE
+
+  #define Z_PROBE_ALLEN_KEY_STOW_1 { -64.0, 56.0, 23.0 } // Move the probe into position
+  #define Z_PROBE_ALLEN_KEY_STOW_1_FEEDRATE XY_PROBE_FEEDRATE
+
+  #define Z_PROBE_ALLEN_KEY_STOW_2 { -64.0, 56.0, 3.0 } // Push it down
+  #define Z_PROBE_ALLEN_KEY_STOW_2_FEEDRATE (XY_PROBE_FEEDRATE)/10
+
+  #define Z_PROBE_ALLEN_KEY_STOW_3 { -64.0, 56.0, 50.0 } // Move it up to clear
+  #define Z_PROBE_ALLEN_KEY_STOW_3_FEEDRATE XY_PROBE_FEEDRATE
+
+  #define Z_PROBE_ALLEN_KEY_STOW_4 { 0.0, 0.0, 50.0 }
+  #define Z_PROBE_ALLEN_KEY_STOW_4_FEEDRATE XY_PROBE_FEEDRATE
+
+#endif // Z_PROBE_ALLEN_KEY
+
+/**
+ * Nozzle-to-Probe offsets { X, Y, Z }
+ *
+ * X and Y offset
+ *   Use a caliper or ruler to measure the distance from the tip of
+ *   the Nozzle to the center-point of the Probe in the X and Y axes.
+ *
+ * Z offset
+ * - For the Z offset use your best known value and adjust at runtime.
+ * - Common probes trigger below the nozzle and have negative values for Z offset.
+ * - Probes triggering above the nozzle height are uncommon but do exist. When using
+ *   probes such as this, carefully set Z_CLEARANCE_DEPLOY_PROBE and Z_CLEARANCE_BETWEEN_PROBES
+ *   to avoid collisions during probing.
+ *
+ * Tune and Adjust
+ * -  Probe Offsets can be tuned at runtime with 'M851', LCD menus, babystepping, etc.
+ * -  PROBE_OFFSET_WIZARD (Configuration_adv.h) can be used for setting the Z offset.
+ *
+ * Assuming the typical work area orientation:
+ *  - Probe to RIGHT of the Nozzle has a Positive X offset
+ *  - Probe to LEFT  of the Nozzle has a Negative X offset
+ *  - Probe in BACK  of the Nozzle has a Positive Y offset
+ *  - Probe in FRONT of the Nozzle has a Negative Y offset
+ *
+ * Some examples:
+ *   #define NOZZLE_TO_PROBE_OFFSET { 10, 10, -1 }   // Example "1"
+ *   #define NOZZLE_TO_PROBE_OFFSET {-10,  5, -1 }   // Example "2"
+ *   #define NOZZLE_TO_PROBE_OFFSET {  5, -5, -1 }   // Example "3"
+ *   #define NOZZLE_TO_PROBE_OFFSET {-15,-10, -1 }   // Example "4"
+ *
+ *     +-- BACK ---+
+ *     |    [+]    |
+ *   L |        1  | R <-- Example "1" (right+,  back+)
+ *   E |  2        | I <-- Example "2" ( left-,  back+)
+ *   F |[-]  N  [+]| G <-- Nozzle
+ *   T |       3   | H <-- Example "3" (right+, front-)
+ *     | 4         | T <-- Example "4" ( left-, front-)
+ *     |    [-]    |
+ *     O-- FRONT --+
+ */
+#define NOZZLE_TO_PROBE_OFFSET { 27, -20, 0 }
+
+// Enable and set to use a specific tool for probing. Disable to allow any tool.
+#define PROBING_TOOL 0
+#ifdef PROBING_TOOL
+  //#define PROBE_TOOLCHANGE_NO_MOVE  // Suppress motion on probe tool-change
+#endif
+
+// Most probes should stay away from the edges of the bed, but
+// with NOZZLE_AS_PROBE this can be negative for a wider probing area.
+#define PROBING_MARGIN 0
+
+// X and Y axis travel speed (mm/min) between probes
+#define XY_PROBE_FEEDRATE (60*60)
+
+// Feedrate (mm/min) for the first approach when double-probing (MULTIPLE_PROBING == 2)
+#define Z_PROBE_FEEDRATE_FAST (4*60)
+
+// Feedrate (mm/min) for the "accurate" probe of each point
+#define Z_PROBE_FEEDRATE_SLOW (Z_PROBE_FEEDRATE_FAST / 2)
+
+/**
+ * Probe Activation Switch
+ * A switch indicating proper deployment, or an optical
+ * switch triggered when the carriage is near the bed.
+ */
+//#define PROBE_ACTIVATION_SWITCH
+#if ENABLED(PROBE_ACTIVATION_SWITCH)
+  #define PROBE_ACTIVATION_SWITCH_STATE LOW // State indicating probe is active
+  //#define PROBE_ACTIVATION_SWITCH_PIN PC6 // Override default pin
+#endif
+
+/**
+ * Tare Probe (determine zero-point) prior to each probe.
+ * Useful for a strain gauge or piezo sensor that needs to factor out
+ * elements such as cables pulling on the carriage.
+ */
+//#define PROBE_TARE
+#if ENABLED(PROBE_TARE)
+  #define PROBE_TARE_TIME  200    // (ms) Time to hold tare pin
+  #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
+  #define PROBE_TARE_STATE HIGH   // State to write pin for tare
+  //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
+  #if ENABLED(PROBE_ACTIVATION_SWITCH)
+    //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
+  #endif
+#endif
+
+/**
+ * Probe Enable / Disable
+ * The probe only provides a triggered signal when enabled.
+ */
+//#define PROBE_ENABLE_DISABLE
+#if ENABLED(PROBE_ENABLE_DISABLE)
+  //#define PROBE_ENABLE_PIN -1   // Override the default pin here
+#endif
+
+/**
+ * Multiple Probing
+ *
+ * You may get improved results by probing 2 or more times.
+ * With EXTRA_PROBING the more atypical reading(s) will be disregarded.
+ *
+ * A total of 2 does fast/slow probes with a weighted average.
+ * A total of 3 or more adds more slow probes, taking the average.
+ */
+//#define MULTIPLE_PROBING 2
+//#define EXTRA_PROBING    1
+
+/**
+ * Z probes require clearance when deploying, stowing, and moving between
+ * probe points to avoid hitting the bed and other hardware.
+ * Servo-mounted probes require extra space for the arm to rotate.
+ * Inductive probes need space to keep from triggering early.
+ *
+ * Use these settings to specify the distance (mm) to raise the probe (or
+ * lower the bed). The values set here apply over and above any (negative)
+ * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
+ * Only integer values >= 1 are valid here.
+ *
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ */
+#define Z_CLEARANCE_DEPLOY_PROBE    5 // (mm) Z Clearance for Deploy/Stow
+#define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
+#define Z_CLEARANCE_MULTI_PROBE     5 // (mm) Z Clearance between multiple probes
+#define Z_PROBE_ERROR_TOLERANCE     3 // (mm) Tolerance for early trigger (<= -probe.offset.z + ZPET)
+//#define Z_AFTER_PROBING           5 // (mm) Z position after probing is done
+
+#define Z_PROBE_LOW_POINT          -3 // (mm) Farthest distance below the trigger-point to go before stopping
+
+// For M851 provide ranges for adjusting the X, Y, and Z probe offsets
+//#define PROBE_OFFSET_XMIN -50   // (mm)
+//#define PROBE_OFFSET_XMAX  50   // (mm)
+//#define PROBE_OFFSET_YMIN -50   // (mm)
+//#define PROBE_OFFSET_YMAX  50   // (mm)
+//#define PROBE_OFFSET_ZMIN -20   // (mm)
+//#define PROBE_OFFSET_ZMAX  20   // (mm)
+
+// Enable the M48 repeatability test to test probe accuracy
+#define Z_MIN_PROBE_REPEATABILITY_TEST
+
+// Before deploy/stow pause for user confirmation
+//#define PAUSE_BEFORE_DEPLOY_STOW
+#if ENABLED(PAUSE_BEFORE_DEPLOY_STOW)
+  //#define PAUSE_PROBE_DEPLOY_WHEN_TRIGGERED // For Manual Deploy Allenkey Probe
+#endif
+
+/**
+ * Enable one or more of the following if probing seems unreliable.
+ * Heaters and/or fans can be disabled during probing to minimize electrical
+ * noise. A delay can also be added to allow noise and vibration to settle.
+ * These options are most useful for the BLTouch probe, but may also improve
+ * readings with inductive probes and piezo sensors.
+ */
+//#define PROBING_HEATERS_OFF       // Turn heaters off when probing
+#if ENABLED(PROBING_HEATERS_OFF)
+  //#define WAIT_FOR_BED_HEATER     // Wait for bed to heat back up between probes (to improve accuracy)
+  //#define WAIT_FOR_HOTEND         // Wait for hotend to heat back up between probes (to improve accuracy & prevent cold extrude)
+#endif
+//#define PROBING_FANS_OFF          // Turn fans off when probing
+//#define PROBING_ESTEPPERS_OFF     // Turn all extruder steppers off when probing
+//#define PROBING_STEPPERS_OFF      // Turn all steppers off (unless needed to hold position) when probing (including extruders)
+//#define DELAY_BEFORE_PROBING 200  // (ms) To prevent vibrations from triggering piezo sensors
+
+// Require minimum nozzle and/or bed temperature for probing
+//#define PREHEAT_BEFORE_PROBING
+#if ENABLED(PREHEAT_BEFORE_PROBING)
+  #define PROBING_NOZZLE_TEMP 120   // (°C) Only applies to E0 at this time
+  #define PROBING_BED_TEMP     50
+#endif
+
+// @section stepper drivers
+
+// For Inverting Stepper Enable Pins (Active Low) use 0, Non Inverting (Active High) use 1
+// :{ 0:'Low', 1:'High' }
+#define X_ENABLE_ON 0
+#define Y_ENABLE_ON 0
+#define Z_ENABLE_ON 0
+#define E_ENABLE_ON 0 // For all extruders
+//#define I_ENABLE_ON 0
+//#define J_ENABLE_ON 0
+//#define K_ENABLE_ON 0
+//#define U_ENABLE_ON 0
+//#define V_ENABLE_ON 0
+//#define W_ENABLE_ON 0
+
+// Disable axis steppers immediately when they're not being stepped.
+// WARNING: When motors turn off there is a chance of losing position accuracy!
+//#define DISABLE_X
+//#define DISABLE_Y
+//#define DISABLE_Z
+//#define DISABLE_I
+//#define DISABLE_J
+//#define DISABLE_K
+//#define DISABLE_U
+//#define DISABLE_V
+//#define DISABLE_W
+
+// Turn off the display blinking that warns about possible accuracy reduction
+//#define DISABLE_REDUCED_ACCURACY_WARNING
+
+// @section extruder
+
+//#define DISABLE_E               // Disable the extruder when not stepping
+#define DISABLE_OTHER_EXTRUDERS   // Keep only the active extruder enabled
+
+// @section motion
+
+// Invert the stepper direction. Change (or reverse the motor connector) if an axis goes the wrong way.
+#define INVERT_X_DIR true
+#define INVERT_Y_DIR false
+#define INVERT_Z_DIR true
+//#define INVERT_I_DIR false
+//#define INVERT_J_DIR false
+//#define INVERT_K_DIR false
+//#define INVERT_U_DIR false
+//#define INVERT_V_DIR false
+//#define INVERT_W_DIR false
+
+// @section extruder
+
+// For direct drive extruder v9 set to true, for geared extruder set to false.
+#define INVERT_E0_DIR true
+#define INVERT_E1_DIR false
+#define INVERT_E2_DIR false
+#define INVERT_E3_DIR false
+#define INVERT_E4_DIR false
+#define INVERT_E5_DIR false
+#define INVERT_E6_DIR false
+#define INVERT_E7_DIR false
+
+// @section homing
+
+//#define NO_MOTION_BEFORE_HOMING // Inhibit movement until all axes have been homed. Also enable HOME_AFTER_DEACTIVATE for extra safety.
+//#define HOME_AFTER_DEACTIVATE   // Require rehoming after steppers are deactivated. Also enable NO_MOTION_BEFORE_HOMING for extra safety.
+
+/**
+ * Set Z_IDLE_HEIGHT if the Z-Axis moves on its own when steppers are disabled.
+ *  - Use a low value (i.e., Z_MIN_POS) if the nozzle falls down to the bed.
+ *  - Use a large value (i.e., Z_MAX_POS) if the bed falls down, away from the nozzle.
+ */
+//#define Z_IDLE_HEIGHT Z_HOME_POS
+
+#define Z_CLEARANCE_FOR_HOMING   10   // (mm) Minimal Z height before homing (G28) for Z clearance above the bed, clamps, ...
+                                      // You'll need this much clearance above Z_MAX_POS to avoid grinding.
+
+#define Z_AFTER_HOMING         10     // (mm) Height to move to after homing (if Z was homed)
+//#define XY_AFTER_HOMING { 10, 10 }  // (mm) Move to an XY position after homing (and raising Z)
+
+//#define EVENT_GCODE_AFTER_HOMING "M300 P440 S200"  // Commands to run after G28 (and move to XY_AFTER_HOMING)
+
+// Direction of endstops when homing; 1=MAX, -1=MIN
+// :[-1,1]
+#define X_HOME_DIR -1
+#define Y_HOME_DIR -1
+#define Z_HOME_DIR -1
+//#define I_HOME_DIR -1
+//#define J_HOME_DIR -1
+//#define K_HOME_DIR -1
+//#define U_HOME_DIR -1
+//#define V_HOME_DIR -1
+//#define W_HOME_DIR -1
+
+/**
+ * Safety Stops
+ * If an axis has endstops on both ends the one specified above is used for
+ * homing, while the other can be used for things like SD_ABORT_ON_ENDSTOP_HIT.
+ */
+//#define X_SAFETY_STOP
+//#define Y_SAFETY_STOP
+//#define Z_SAFETY_STOP
+//#define I_SAFETY_STOP
+//#define J_SAFETY_STOP
+//#define K_SAFETY_STOP
+//#define U_SAFETY_STOP
+//#define V_SAFETY_STOP
+//#define W_SAFETY_STOP
+
+// @section geometry
+
+// The size of the printable area
+#define X_BED_SIZE 220
+#define Y_BED_SIZE 220
+
+// Travel limits (linear=mm, rotational=°) after homing, corresponding to endstop positions.
+#define X_MIN_POS 0
+#define Y_MIN_POS 0
+#define Z_MIN_POS 0
+#define X_MAX_POS X_BED_SIZE
+#define Y_MAX_POS Y_BED_SIZE
+#define Z_MAX_POS 250
+//#define I_MIN_POS 0
+//#define I_MAX_POS 50
+//#define J_MIN_POS 0
+//#define J_MAX_POS 50
+//#define K_MIN_POS 0
+//#define K_MAX_POS 50
+//#define U_MIN_POS 0
+//#define U_MAX_POS 50
+//#define V_MIN_POS 0
+//#define V_MAX_POS 50
+//#define W_MIN_POS 0
+//#define W_MAX_POS 50
+
+/**
+ * Software Endstops
+ *
+ * - Prevent moves outside the set machine bounds.
+ * - Individual axes can be disabled, if desired.
+ * - X and Y only apply to Cartesian robots.
+ * - Use 'M211' to set software endstops on/off or report current state
+ */
+
+// Min software endstops constrain movement within minimum coordinate bounds
+#define MIN_SOFTWARE_ENDSTOPS
+#if ENABLED(MIN_SOFTWARE_ENDSTOPS)
+  #define MIN_SOFTWARE_ENDSTOP_X
+  #define MIN_SOFTWARE_ENDSTOP_Y
+  #define MIN_SOFTWARE_ENDSTOP_Z
+  #define MIN_SOFTWARE_ENDSTOP_I
+  #define MIN_SOFTWARE_ENDSTOP_J
+  #define MIN_SOFTWARE_ENDSTOP_K
+  #define MIN_SOFTWARE_ENDSTOP_U
+  #define MIN_SOFTWARE_ENDSTOP_V
+  #define MIN_SOFTWARE_ENDSTOP_W
+#endif
+
+// Max software endstops constrain movement within maximum coordinate bounds
+#define MAX_SOFTWARE_ENDSTOPS
+#if ENABLED(MAX_SOFTWARE_ENDSTOPS)
+  #define MAX_SOFTWARE_ENDSTOP_X
+  #define MAX_SOFTWARE_ENDSTOP_Y
+  #define MAX_SOFTWARE_ENDSTOP_Z
+  #define MAX_SOFTWARE_ENDSTOP_I
+  #define MAX_SOFTWARE_ENDSTOP_J
+  #define MAX_SOFTWARE_ENDSTOP_K
+  #define MAX_SOFTWARE_ENDSTOP_U
+  #define MAX_SOFTWARE_ENDSTOP_V
+  #define MAX_SOFTWARE_ENDSTOP_W
+#endif
+
+#if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
+  //#define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+#endif
+
+/**
+ * @section filament runout sensors
+ *
+ * Filament Runout Sensors
+ * Mechanical or opto endstops are used to check for the presence of filament.
+ *
+ * IMPORTANT: Runout will only trigger if Marlin is aware that a print job is running.
+ * Marlin knows a print job is running when:
+ *  1. Running a print job from media started with M24.
+ *  2. The Print Job Timer has been started with M75.
+ *  3. The heaters were turned on and PRINTJOB_TIMER_AUTOSTART is enabled.
+ *
+ * RAMPS-based boards use SERVO3_PIN for the first runout sensor.
+ * For other boards you may need to define FIL_RUNOUT_PIN, FIL_RUNOUT2_PIN, etc.
+ */
+#define FILAMENT_RUNOUT_SENSOR
+#if ENABLED(FILAMENT_RUNOUT_SENSOR)
+  #define FIL_RUNOUT_ENABLED_DEFAULT false // Enable the sensor on startup. Override with M412 followed by M500.
+  #define NUM_RUNOUT_SENSORS   1          // Number of sensors, up to one per extruder. Define a FIL_RUNOUT#_PIN for each.
+
+  #define FIL_RUNOUT_STATE     LOW        // Pin state indicating that filament is NOT present.
+  #define FIL_RUNOUT_PULLUP               // Use internal pullup for filament runout pins.
+  //#define FIL_RUNOUT_PULLDOWN           // Use internal pulldown for filament runout pins.
+  //#define WATCH_ALL_RUNOUT_SENSORS      // Execute runout script on any triggering sensor, not only for the active extruder.
+                                          // This is automatically enabled for MIXING_EXTRUDERs.
+
+  // Override individually if the runout sensors vary
+  //#define FIL_RUNOUT1_STATE LOW
+  //#define FIL_RUNOUT1_PULLUP
+  //#define FIL_RUNOUT1_PULLDOWN
+
+  //#define FIL_RUNOUT2_STATE LOW
+  //#define FIL_RUNOUT2_PULLUP
+  //#define FIL_RUNOUT2_PULLDOWN
+
+  //#define FIL_RUNOUT3_STATE LOW
+  //#define FIL_RUNOUT3_PULLUP
+  //#define FIL_RUNOUT3_PULLDOWN
+
+  //#define FIL_RUNOUT4_STATE LOW
+  //#define FIL_RUNOUT4_PULLUP
+  //#define FIL_RUNOUT4_PULLDOWN
+
+  //#define FIL_RUNOUT5_STATE LOW
+  //#define FIL_RUNOUT5_PULLUP
+  //#define FIL_RUNOUT5_PULLDOWN
+
+  //#define FIL_RUNOUT6_STATE LOW
+  //#define FIL_RUNOUT6_PULLUP
+  //#define FIL_RUNOUT6_PULLDOWN
+
+  //#define FIL_RUNOUT7_STATE LOW
+  //#define FIL_RUNOUT7_PULLUP
+  //#define FIL_RUNOUT7_PULLDOWN
+
+  //#define FIL_RUNOUT8_STATE LOW
+  //#define FIL_RUNOUT8_PULLUP
+  //#define FIL_RUNOUT8_PULLDOWN
+
+  // Commands to execute on filament runout.
+  // With multiple runout sensors use the %c placeholder for the current tool in commands (e.g., "M600 T%c")
+  // NOTE: After 'M412 H1' the host handles filament runout and this script does not apply.
+  #define FILAMENT_RUNOUT_SCRIPT "M600"
+
+  // After a runout is detected, continue printing this length of filament
+  // before executing the runout script. Useful for a sensor at the end of
+  // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.
+  //#define FILAMENT_RUNOUT_DISTANCE_MM 25
+
+  #ifdef FILAMENT_RUNOUT_DISTANCE_MM
+    // Enable this option to use an encoder disc that toggles the runout pin
+    // as the filament moves. (Be sure to set FILAMENT_RUNOUT_DISTANCE_MM
+    // large enough to avoid false positives.)
+    //#define FILAMENT_MOTION_SENSOR
+
+    #if ENABLED(FILAMENT_MOTION_SENSOR)
+      //#define FILAMENT_SWITCH_AND_MOTION
+      #if ENABLED(FILAMENT_SWITCH_AND_MOTION)
+        #define NUM_MOTION_SENSORS   1          // Number of sensors, up to one per extruder. Define a FIL_MOTION#_PIN for each.
+        //#define FIL_MOTION1_PIN    -1
+
+        // Override individually if the motion sensors vary
+        //#define FIL_MOTION1_STATE LOW
+        //#define FIL_MOTION1_PULLUP
+        //#define FIL_MOTION1_PULLDOWN
+
+        //#define FIL_MOTION2_STATE LOW
+        //#define FIL_MOTION2_PULLUP
+        //#define FIL_MOTION2_PULLDOWN
+
+        //#define FIL_MOTION3_STATE LOW
+        //#define FIL_MOTION3_PULLUP
+        //#define FIL_MOTION3_PULLDOWN
+
+        //#define FIL_MOTION4_STATE LOW
+        //#define FIL_MOTION4_PULLUP
+        //#define FIL_MOTION4_PULLDOWN
+
+        //#define FIL_MOTION5_STATE LOW
+        //#define FIL_MOTION5_PULLUP
+        //#define FIL_MOTION5_PULLDOWN
+
+        //#define FIL_MOTION6_STATE LOW
+        //#define FIL_MOTION6_PULLUP
+        //#define FIL_MOTION6_PULLDOWN
+
+        //#define FIL_MOTION7_STATE LOW
+        //#define FIL_MOTION7_PULLUP
+        //#define FIL_MOTION7_PULLDOWN
+
+        //#define FIL_MOTION8_STATE LOW
+        //#define FIL_MOTION8_PULLUP
+        //#define FIL_MOTION8_PULLDOWN
+      #endif
+    #endif
+  #endif
+#endif
+
+//===========================================================================
+//=============================== Bed Leveling ==============================
+//===========================================================================
+// @section calibrate
+
+/**
+ * Choose one of the options below to enable G29 Bed Leveling. The parameters
+ * and behavior of G29 will change depending on your selection.
+ *
+ *  If using a Probe for Z Homing, enable Z_SAFE_HOMING also!
+ *
+ * - AUTO_BED_LEVELING_3POINT
+ *   Probe 3 arbitrary points on the bed (that aren't collinear)
+ *   You specify the XY coordinates of all 3 points.
+ *   The result is a single tilted plane. Best for a flat bed.
+ *
+ * - AUTO_BED_LEVELING_LINEAR
+ *   Probe several points in a grid.
+ *   You specify the rectangle and the density of sample points.
+ *   The result is a single tilted plane. Best for a flat bed.
+ *
+ * - AUTO_BED_LEVELING_BILINEAR
+ *   Probe several points in a grid.
+ *   You specify the rectangle and the density of sample points.
+ *   The result is a mesh, best for large or uneven beds.
+ *
+ * - AUTO_BED_LEVELING_UBL (Unified Bed Leveling)
+ *   A comprehensive bed leveling system combining the features and benefits
+ *   of other systems. UBL also includes integrated Mesh Generation, Mesh
+ *   Validation and Mesh Editing systems.
+ *
+ * - MESH_BED_LEVELING
+ *   Probe a grid manually
+ *   The result is a mesh, suitable for large or uneven beds. (See BILINEAR.)
+ *   For machines without a probe, Mesh Bed Leveling provides a method to perform
+ *   leveling in steps so you can manually adjust the Z height at each grid-point.
+ *   With an LCD controller the process is guided step-by-step.
+ */
+//#define AUTO_BED_LEVELING_3POINT
+//#define AUTO_BED_LEVELING_LINEAR
+#define AUTO_BED_LEVELING_BILINEAR
+//#define AUTO_BED_LEVELING_UBL
+//#define MESH_BED_LEVELING
+
+/**
+ * Commands to execute at the end of G29 probing.
+ * Useful to retract or move the Z probe out of the way.
+ */
+#define EVENT_GCODE_AFTER_G29 "G28XY\nM500"
+
+/**
+ * Normally G28 leaves leveling disabled on completion. Enable one of
+ * these options to restore the prior leveling state or to always enable
+ * leveling immediately after G28.
+ */
+#define RESTORE_LEVELING_AFTER_G28
+//#define ENABLE_LEVELING_AFTER_G28
+
+/**
+ * Auto-leveling needs preheating
+ */
+#define PREHEAT_BEFORE_LEVELING
+#if ENABLED(PREHEAT_BEFORE_LEVELING)
+  #define LEVELING_NOZZLE_TEMP 120   // (°C) Only applies to E0 at this time
+  #define LEVELING_BED_TEMP     60
+#endif
+
+/**
+ * Enable detailed logging of G28, G29, M48, etc.
+ * Turn on with the command 'M111 S32'.
+ * NOTE: Requires a lot of flash!
+ */
+#define DEBUG_LEVELING_FEATURE
+
+#if ANY(MESH_BED_LEVELING, AUTO_BED_LEVELING_UBL, PROBE_MANUALLY)
+  // Set a height for the start of manual adjustment
+  #define MANUAL_PROBE_START_Z 0.2  // (mm) Comment out to use the last-measured height
+#endif
+
+#if ANY(MESH_BED_LEVELING, AUTO_BED_LEVELING_BILINEAR, AUTO_BED_LEVELING_UBL)
+  /**
+   * Gradually reduce leveling correction until a set height is reached,
+   * at which point movement will be level to the machine's XY plane.
+   * The height can be set with M420 Z<height>
+   */
+  #define ENABLE_LEVELING_FADE_HEIGHT
+  #if ENABLED(ENABLE_LEVELING_FADE_HEIGHT)
+    #define DEFAULT_LEVELING_FADE_HEIGHT 10.0 // (mm) Default fade height.
+  #endif
+
+  /**
+   * Add Z offset (M424 Z) that applies to all moves at the planner level.
+   * This Z offset will be automatically set to the middle value with G29.
+   */
+  //#define GLOBAL_MESH_Z_OFFSET
+
+  /**
+   * For Cartesian machines, instead of dividing moves on mesh boundaries,
+   * split up moves into short segments like a Delta. This follows the
+   * contours of the bed more closely than edge-to-edge straight moves.
+   */
+  #define SEGMENT_LEVELED_MOVES
+  #define LEVELED_SEGMENT_LENGTH 5.0 // (mm) Length of all segments (except the last one)
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  #define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for G26.
+    #define MESH_TEST_HOTEND_TEMP  205    // (°C) Default nozzle temperature for G26.
+    #define MESH_TEST_BED_TEMP      60    // (°C) Default bed temperature for G26.
+    #define G26_XY_FEEDRATE         20    // (mm/s) Feedrate for G26 XY moves.
+    #define G26_XY_FEEDRATE_TRAVEL 100    // (mm/s) Feedrate for G26 XY travel moves.
+    #define G26_RETRACT_MULTIPLIER   1.0  // G26 Q (retraction) used by default between mesh test elements.
+  #endif
+
+#endif
+
+#if ANY(AUTO_BED_LEVELING_LINEAR, AUTO_BED_LEVELING_BILINEAR)
+
+  // Set the number of grid points per dimension.
+  #define GRID_MAX_POINTS_X 5
+  #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
+
+  // Probe along the Y axis, advancing X after each column
+  //#define PROBE_Y_FIRST
+
+  #if ENABLED(AUTO_BED_LEVELING_BILINEAR)
+
+    // Beyond the probed grid, continue the implied tilt?
+    // Default is to maintain the height of the nearest edge.
+    #define EXTRAPOLATE_BEYOND_GRID
+
+    //
+    // Subdivision of the grid by Catmull-Rom method.
+    // Synthesizes intermediate points to produce a more detailed mesh.
+    //
+    #define ABL_BILINEAR_SUBDIVISION
+    #if ENABLED(ABL_BILINEAR_SUBDIVISION)
+      // Number of subdivisions between probe points
+      #define BILINEAR_SUBDIVISIONS 3
+    #endif
+
+  #endif
+
+#elif ENABLED(AUTO_BED_LEVELING_UBL)
+
+  //===========================================================================
+  //========================= Unified Bed Leveling ============================
+  //===========================================================================
+
+  //#define MESH_EDIT_GFX_OVERLAY   // Display a graphics overlay while editing the mesh
+
+  #define MESH_INSET 1              // Set Mesh bounds as an inset region of the bed
+  #define GRID_MAX_POINTS_X  5      // Don't use more than 15 points per axis, implementation limited.
+  #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
+
+  //#define UBL_HILBERT_CURVE       // Use Hilbert distribution for less travel when probing multiple points
+
+  //#define UBL_TILT_ON_MESH_POINTS         // Use nearest mesh points with G29 J for better Z reference
+  //#define UBL_TILT_ON_MESH_POINTS_3POINT  // Use nearest mesh points with G29 J0 (3-point)
+
+  #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
+  #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
+
+  //#define UBL_Z_RAISE_WHEN_OFF_MESH 2.5 // When the nozzle is off the mesh, this value is used
+                                          // as the Z-Height correction value.
+
+  //#define UBL_MESH_WIZARD         // Run several commands in a row to get a complete mesh
+
+  /**
+   * Probing not allowed within the position of an obstacle.
+   */
+  //#define AVOID_OBSTACLES
+  #if ENABLED(AVOID_OBSTACLES)
+    #define CLIP_W  23  // Bed clip width, should be padded a few mm over its physical size
+    #define CLIP_H  14  // Bed clip height, should be padded a few mm over its physical size
+
+    // Obstacle Rectangles defined as { X1, Y1, X2, Y2 }
+    #define OBSTACLE1 { (X_BED_SIZE) / 4     - (CLIP_W) / 2,                       0, (X_BED_SIZE) / 4     + (CLIP_W) / 2, CLIP_H }
+    #define OBSTACLE2 { (X_BED_SIZE) * 3 / 4 - (CLIP_W) / 2,                       0, (X_BED_SIZE) * 3 / 4 + (CLIP_W) / 2, CLIP_H }
+    #define OBSTACLE3 { (X_BED_SIZE) / 4     - (CLIP_W) / 2, (Y_BED_SIZE) - (CLIP_H), (X_BED_SIZE) / 4     + (CLIP_W) / 2, Y_BED_SIZE }
+    #define OBSTACLE4 { (X_BED_SIZE) * 3 / 4 - (CLIP_W) / 2, (Y_BED_SIZE) - (CLIP_H), (X_BED_SIZE) * 3 / 4 + (CLIP_W) / 2, Y_BED_SIZE }
+
+    // The probed grid must be inset for G29 J. This is okay, since it is
+    // only used to compute a linear transformation for the mesh itself.
+    #define G29J_MESH_TILT_MARGIN ((CLIP_H) + 1)
+  #endif
+
+#elif ENABLED(MESH_BED_LEVELING)
+
+  //===========================================================================
+  //=================================== Mesh ==================================
+  //===========================================================================
+
+  #define MESH_INSET 10          // Set Mesh bounds as an inset region of the bed
+  #define GRID_MAX_POINTS_X 5    // Don't use more than 7 points per axis, implementation limited.
+  #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
+
+  //#define MESH_G28_REST_ORIGIN // After homing all axes ('G28' or 'G28 XYZ') rest Z at Z_MIN_POS
+
+#endif // BED_LEVELING
+
+/**
+ * Add a bed leveling sub-menu for ABL or MBL.
+ * Include a guided procedure if manual probing is enabled.
+ */
+#define LCD_BED_LEVELING
+
+#if ENABLED(LCD_BED_LEVELING)
+  #define MESH_EDIT_Z_STEP  0.01  // (mm) Step size while manually probing Z axis.
+  #define LCD_PROBE_Z_RANGE 8     // (mm) Z Range centered on Z_MIN_POS for LCD Z adjustment
+  //#define MESH_EDIT_MENU        // Add a menu to edit mesh points
+#endif
+
+// Add a menu item to move between bed corners for manual bed adjustment
+//#define LCD_BED_TRAMMING
+
+#if ENABLED(LCD_BED_TRAMMING)
+  #define BED_TRAMMING_INSET_LFRB { 30, 30, 30, 30 } // (mm) Left, Front, Right, Back insets
+  #define BED_TRAMMING_HEIGHT      0.0        // (mm) Z height of nozzle at tramming points
+  #define BED_TRAMMING_Z_HOP       4.0        // (mm) Z raise between tramming points
+  //#define BED_TRAMMING_INCLUDE_CENTER       // Move to the center after the last corner
+  //#define BED_TRAMMING_USE_PROBE
+  #if ENABLED(BED_TRAMMING_USE_PROBE)
+    #define BED_TRAMMING_PROBE_TOLERANCE 0.1  // (mm)
+    #define BED_TRAMMING_VERIFY_RAISED        // After adjustment triggers the probe, re-probe to verify
+    //#define BED_TRAMMING_AUDIO_FEEDBACK
+  #endif
+
+  /**
+   * Corner Leveling Order
+   *
+   * Set 2 or 4 points. When 2 points are given, the 3rd is the center of the opposite edge.
+   *
+   *  LF  Left-Front    RF  Right-Front
+   *  LB  Left-Back     RB  Right-Back
+   *
+   * Examples:
+   *
+   *      Default        {LF,RB,LB,RF}         {LF,RF}           {LB,LF}
+   *  LB --------- RB   LB --------- RB    LB --------- RB   LB --------- RB
+   *  |  4       3  |   | 3         2 |    |     <3>     |   | 1           |
+   *  |             |   |             |    |             |   |          <3>|
+   *  |  1       2  |   | 1         4 |    | 1         2 |   | 2           |
+   *  LF --------- RF   LF --------- RF    LF --------- RF   LF --------- RF
+   */
+  #define BED_TRAMMING_LEVELING_ORDER { LF, RF, RB, LB }
+#endif
+
+// @section homing
+
+// The center of the bed is at (X=0, Y=0)
+//#define BED_CENTER_AT_0_0
+
+// Manually set the home position. Leave these undefined for automatic settings.
+// For DELTA this is the top-center of the Cartesian print volume.
+//#define MANUAL_X_HOME_POS 0
+//#define MANUAL_Y_HOME_POS 0
+//#define MANUAL_Z_HOME_POS 0
+//#define MANUAL_I_HOME_POS 0
+//#define MANUAL_J_HOME_POS 0
+//#define MANUAL_K_HOME_POS 0
+//#define MANUAL_U_HOME_POS 0
+//#define MANUAL_V_HOME_POS 0
+//#define MANUAL_W_HOME_POS 0
+
+/**
+ * Use "Z Safe Homing" to avoid homing with a Z probe outside the bed area.
+ *
+ * - Moves the Z probe (or nozzle) to a defined XY point before Z homing.
+ * - Allows Z homing only when XY positions are known and trusted.
+ * - If stepper drivers sleep, XY homing may be required again before Z homing.
+ */
+#define Z_SAFE_HOMING
+
+#if ENABLED(Z_SAFE_HOMING)
+  #define Z_SAFE_HOMING_X_POINT X_CENTER  // (mm) X point for Z homing
+  #define Z_SAFE_HOMING_Y_POINT Y_CENTER  // (mm) Y point for Z homing
+  //#define Z_SAFE_HOMING_POINT_ABSOLUTE  // Ignore home offsets (M206) for Z homing position
+#endif
+
+// Homing speeds (linear=mm/min, rotational=°/min)
+#define HOMING_FEEDRATE_MM_M { (40*60), (40*60), (4*60) }
+
+// Validate that endstops are triggered on homing moves
+#define VALIDATE_HOMING_ENDSTOPS
+
+// @section calibrate
+
+/**
+ * Bed Skew Compensation
+ *
+ * This feature corrects for misalignment in the XYZ axes.
+ *
+ * Take the following steps to get the bed skew in the XY plane:
+ *  1. Print a test square (e.g., https://www.thingiverse.com/thing:2563185)
+ *  2. For XY_DIAG_AC measure the diagonal A to C
+ *  3. For XY_DIAG_BD measure the diagonal B to D
+ *  4. For XY_SIDE_AD measure the edge A to D
+ *
+ * Marlin automatically computes skew factors from these measurements.
+ * Skew factors may also be computed and set manually:
+ *
+ *  - Compute AB     : SQRT(2*AC*AC+2*BD*BD-4*AD*AD)/2
+ *  - XY_SKEW_FACTOR : TAN(PI/2-ACOS((AC*AC-AB*AB-AD*AD)/(2*AB*AD)))
+ *
+ * If desired, follow the same procedure for XZ and YZ.
+ * Use these diagrams for reference:
+ *
+ *    Y                     Z                     Z
+ *    ^     B-------C       ^     B-------C       ^     B-------C
+ *    |    /       /        |    /       /        |    /       /
+ *    |   /       /         |   /       /         |   /       /
+ *    |  A-------D          |  A-------D          |  A-------D
+ *    +-------------->X     +-------------->X     +-------------->Y
+ *     XY_SKEW_FACTOR        XZ_SKEW_FACTOR        YZ_SKEW_FACTOR
+ */
+//#define SKEW_CORRECTION
+
+#if ENABLED(SKEW_CORRECTION)
+  // Input all length measurements here:
+  #define XY_DIAG_AC 282.8427124746
+  #define XY_DIAG_BD 282.8427124746
+  #define XY_SIDE_AD 200
+
+  // Or, set the XY skew factor directly:
+  //#define XY_SKEW_FACTOR 0.0
+
+  //#define SKEW_CORRECTION_FOR_Z
+  #if ENABLED(SKEW_CORRECTION_FOR_Z)
+    #define XZ_DIAG_AC 282.8427124746
+    #define XZ_DIAG_BD 282.8427124746
+    #define YZ_DIAG_AC 282.8427124746
+    #define YZ_DIAG_BD 282.8427124746
+    #define YZ_SIDE_AD 200
+
+    // Or, set the Z skew factors directly:
+    //#define XZ_SKEW_FACTOR 0.0
+    //#define YZ_SKEW_FACTOR 0.0
+  #endif
+
+  // Enable this option for M852 to set skew at runtime
+  //#define SKEW_CORRECTION_GCODE
+#endif
+
+//=============================================================================
+//============================= Additional Features ===========================
+//=============================================================================
+
+// @section eeprom
+
+/**
+ * EEPROM
+ *
+ * Persistent storage to preserve configurable settings across reboots.
+ *
+ *   M500 - Store settings to EEPROM.
+ *   M501 - Read settings from EEPROM. (i.e., Throw away unsaved changes)
+ *   M502 - Revert settings to "factory" defaults. (Follow with M500 to init the EEPROM.)
+ */
+#define EEPROM_SETTINGS       // Persistent storage with M500 and M501
+//#define DISABLE_M503        // Saves ~2700 bytes of flash. Disable for release!
+#define EEPROM_CHITCHAT       // Give feedback on EEPROM commands. Disable to save flash.
+#define EEPROM_BOOT_SILENT    // Keep M503 quiet and only give errors during first load
+#if ENABLED(EEPROM_SETTINGS)
+  //#define EEPROM_AUTO_INIT  // Init EEPROM automatically on any errors.
+  //#define EEPROM_INIT_NOW   // Init EEPROM on first boot after a new build.
+#endif
+
+// @section host
+
+//
+// Host Keepalive
+//
+// When enabled Marlin will send a busy status message to the host
+// every couple of seconds when it can't accept commands.
+//
+#define HOST_KEEPALIVE_FEATURE        // Disable this if your host doesn't like keepalive messages
+#define DEFAULT_KEEPALIVE_INTERVAL 2  // Number of seconds between "busy" messages. Set with M113.
+#define BUSY_WHILE_HEATING            // Some hosts require "busy" messages even during heating
+
+// @section units
+
+//
+// G20/G21 Inch mode support
+//
+//#define INCH_MODE_SUPPORT
+
+//
+// M149 Set temperature units support
+//
+//#define TEMPERATURE_UNITS_SUPPORT
+
+// @section temperature
+
+//
+// Preheat Constants - Up to 10 are supported without changes
+//
+#define PREHEAT_1_LABEL       "PLA"
+#define PREHEAT_1_TEMP_HOTEND 185
+#define PREHEAT_1_TEMP_BED     60
+#define PREHEAT_1_TEMP_CHAMBER 35
+#define PREHEAT_1_FAN_SPEED   255 // Value from 0 to 255
+
+#define PREHEAT_2_LABEL       "ABS"
+#define PREHEAT_2_TEMP_HOTEND 240
+#define PREHEAT_2_TEMP_BED     80
+#define PREHEAT_2_TEMP_CHAMBER 35
+#define PREHEAT_2_FAN_SPEED   255 // Value from 0 to 255
+
+/**
+ * @section nozzle park
+ *
+ * Nozzle Park
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
+#define NOZZLE_PARK_FEATURE
+
+#if ENABLED(NOZZLE_PARK_FEATURE)
+  // Specify a park position as { X, Y, Z_raise }
+  #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
+  #define NOZZLE_PARK_MOVE          0   // Park motion: 0 = XY Move, 1 = X Only, 2 = Y Only, 3 = X before Y, 4 = Y before X
+  #define NOZZLE_PARK_Z_RAISE_MIN   2   // (mm) Always raise Z by at least this distance
+  #define NOZZLE_PARK_XY_FEEDRATE 100   // (mm/s) X and Y axes feedrate (also used for delta Z axis)
+  #define NOZZLE_PARK_Z_FEEDRATE    5   // (mm/s) Z axis feedrate (not used for delta printers)
+#endif
+
+/**
+ * @section nozzle clean
+ *
+ * Clean Nozzle Feature
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ */
+//#define NOZZLE_CLEAN_FEATURE
+
+#if ENABLED(NOZZLE_CLEAN_FEATURE)
+  #define NOZZLE_CLEAN_PATTERN_LINE     // Provide 'G12 P0' - a simple linear cleaning pattern
+  #define NOZZLE_CLEAN_PATTERN_ZIGZAG   // Provide 'G12 P1' - a zigzag cleaning pattern
+  #define NOZZLE_CLEAN_PATTERN_CIRCLE   // Provide 'G12 P2' - a circular cleaning pattern
+
+  // Default pattern to use when 'P' is not provided to G12. One of the enabled options above.
+  #define NOZZLE_CLEAN_DEFAULT_PATTERN 0
+
+  #define NOZZLE_CLEAN_STROKES     12   // Default number of pattern repetitions
+
+  #if ENABLED(NOZZLE_CLEAN_PATTERN_ZIGZAG)
+    #define NOZZLE_CLEAN_TRIANGLES  3   // Default number of triangles
+  #endif
+
+  // Specify positions for each tool as { { X, Y, Z }, { X, Y, Z } }
+  // Dual hotend system may use { {  -20, (Y_BED_SIZE / 2), (Z_MIN_POS + 1) },  {  420, (Y_BED_SIZE / 2), (Z_MIN_POS + 1) }}
+  #define NOZZLE_CLEAN_START_POINT { {  30, 30, (Z_MIN_POS + 1) } }
+  #define NOZZLE_CLEAN_END_POINT   { { 100, 60, (Z_MIN_POS + 1) } }
+
+  #if ENABLED(NOZZLE_CLEAN_PATTERN_CIRCLE)
+    #define NOZZLE_CLEAN_CIRCLE_RADIUS 6.5                      // (mm) Circular pattern radius
+    #define NOZZLE_CLEAN_CIRCLE_FN 10                           // Circular pattern circle number of segments
+    #define NOZZLE_CLEAN_CIRCLE_MIDDLE NOZZLE_CLEAN_START_POINT // Middle point of circle
+  #endif
+
+  // Move the nozzle to the initial position after cleaning
+  #define NOZZLE_CLEAN_GOBACK
+
+  // For a purge/clean station that's always at the gantry height (thus no Z move)
+  //#define NOZZLE_CLEAN_NO_Z
+
+  // For a purge/clean station mounted on the X axis
+  //#define NOZZLE_CLEAN_NO_Y
+
+  // Require a minimum hotend temperature for cleaning
+  #define NOZZLE_CLEAN_MIN_TEMP 170
+  //#define NOZZLE_CLEAN_HEATUP       // Heat up the nozzle instead of skipping wipe
+
+  // Explicit wipe G-code script applies to a G12 with no arguments.
+  //#define WIPE_SEQUENCE_COMMANDS "G1 X-17 Y25 Z10 F4000\nG1 Z1\nM114\nG1 X-17 Y25\nG1 X-17 Y95\nG1 X-17 Y25\nG1 X-17 Y95\nG1 X-17 Y25\nG1 X-17 Y95\nG1 X-17 Y25\nG1 X-17 Y95\nG1 X-17 Y25\nG1 X-17 Y95\nG1 X-17 Y25\nG1 X-17 Y95\nG1 Z15\nM400\nG0 X-10.0 Y-9.0"
+
+#endif
+
+// @section host
+
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M140/M190/M141/M191.
+ * The print job timer will only be stopped if the bed/chamber target temp is
+ * below BED_MINTEMP/CHAMBER_MINTEMP.
+ *
+ *   M104 (hotend, no wait)  - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)     - high temp = start timer, low temp = stop timer
+ *   M140 (bed, no wait)     - high temp = none,        low temp = stop timer
+ *   M190 (bed, wait)        - high temp = start timer, low temp = none
+ *   M141 (chamber, no wait) - high temp = none,        low temp = stop timer
+ *   M191 (chamber, wait)    - high temp = start timer, low temp = none
+ *
+ * For M104/M109, high temp is anything over EXTRUDE_MINTEMP / 2.
+ * For M140/M190, high temp is anything over BED_MINTEMP.
+ * For M141/M191, high temp is anything over CHAMBER_MINTEMP.
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
+#define PRINTJOB_TIMER_AUTOSTART
+
+// @section stats
+
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
+//#define PRINTCOUNTER
+#if ENABLED(PRINTCOUNTER)
+  #define PRINTCOUNTER_SAVE_INTERVAL 60 // (minutes) EEPROM save interval during print. A value of 0 will save stats at end of print.
+#endif
+
+// @section security
+
+/**
+ * Password
+ *
+ * Set a numerical password for the printer which can be requested:
+ *
+ *  - When the printer boots up
+ *  - Upon opening the 'Print from Media' Menu
+ *  - When SD printing is completed or aborted
+ *
+ * The following G-codes can be used:
+ *
+ *  M510 - Lock Printer. Blocks all commands except M511.
+ *  M511 - Unlock Printer.
+ *  M512 - Set, Change and Remove Password.
+ *
+ * If you forget the password and get locked out you'll need to re-flash
+ * the firmware with the feature disabled, reset EEPROM, and (optionally)
+ * re-flash the firmware again with this feature enabled.
+ */
+//#define PASSWORD_FEATURE
+#if ENABLED(PASSWORD_FEATURE)
+  #define PASSWORD_LENGTH 4                 // (#) Number of digits (1-9). 3 or 4 is recommended
+  #define PASSWORD_ON_STARTUP
+  #define PASSWORD_UNLOCK_GCODE             // Unlock with the M511 P<password> command. Disable to prevent brute-force attack.
+  #define PASSWORD_CHANGE_GCODE             // Change the password with M512 P<old> S<new>.
+  //#define PASSWORD_ON_SD_PRINT_MENU       // This does not prevent G-codes from running
+  //#define PASSWORD_AFTER_SD_PRINT_END
+  //#define PASSWORD_AFTER_SD_PRINT_ABORT
+  //#include "Configuration_Secure.h"       // External file with PASSWORD_DEFAULT_VALUE
+#endif
+
+// @section media
+
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ */
+#define SDSUPPORT
+
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
+#if ENABLED(SDSUPPORT)
+  //#define SD_CHECK_AND_RETRY
+#endif
+
+// @section interface
+
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *   en, an, bg, ca, cz, da, de, el, el_CY, es, eu, fi, fr, gl, hr, hu, it,
+ *   jp_kana, ko_KR, nl, pl, pt, pt_br, ro, ru, sk, sv, tr, uk, vi, zh_CN, zh_TW
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cz':'Czech', 'da':'Danish', 'de':'German', 'el':'Greek (Greece)', 'el_CY':'Greek (Cyprus)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'hu':'Hungarian', 'it':'Italian', 'jp_kana':'Japanese', 'ko_KR':'Korean (South Korea)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt_br':'Portuguese (Brazilian)', 'ro':'Romanian', 'ru':'Russian', 'sk':'Slovak', 'sv':'Swedish', 'tr':'Turkish', 'uk':'Ukrainian', 'vi':'Vietnamese', 'zh_CN':'Chinese (Simplified)', 'zh_TW':'Chinese (Traditional)' }
+ */
+#define LCD_LANGUAGE en
+
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https://marlinfw.org/docs/development/lcd_language.html
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
+#define DISPLAY_CHARSET_HD44780 JAPANESE
+
+/**
+ * Info Screen Style (0:Classic, 1:Průša, 2:CNC)
+ *
+ * :[0:'Classic', 1:'Průša', 2:'CNC']
+ */
+#define LCD_INFO_SCREEN_STYLE 0
+
+/**
+ * LCD Menu Items
+ *
+ * Disable all menus and only display the Status Screen, or
+ * just remove some extraneous menu items to recover space.
+ */
+//#define NO_LCD_MENUS
+//#define SLIM_LCD_MENUS
+
+//
+// ENCODER SETTINGS
+//
+// This option overrides the default number of encoder pulses needed to
+// produce one step. Should be increased for high-resolution encoders.
+//
+//#define ENCODER_PULSES_PER_STEP 4
+
+//
+// Use this option to override the number of step signals required to
+// move between next/prev menu items.
+//
+//#define ENCODER_STEPS_PER_MENU_ITEM 1
+
+/**
+ * Encoder Direction Options
+ *
+ * Test your encoder's behavior first with both options disabled.
+ *
+ *  Reversed Value Edit and Menu Nav? Enable REVERSE_ENCODER_DIRECTION.
+ *  Reversed Menu Navigation only?    Enable REVERSE_MENU_DIRECTION.
+ *  Reversed Value Editing only?      Enable BOTH options.
+ */
+
+//
+// This option reverses the encoder direction everywhere.
+//
+//  Set this option if CLOCKWISE causes values to DECREASE
+//
+//#define REVERSE_ENCODER_DIRECTION
+
+//
+// This option reverses the encoder direction for navigating LCD menus.
+//
+//  If CLOCKWISE normally moves DOWN this makes it go UP.
+//  If CLOCKWISE normally moves UP this makes it go DOWN.
+//
+//#define REVERSE_MENU_DIRECTION
+
+//
+// This option reverses the encoder direction for Select Screen.
+//
+//  If CLOCKWISE normally moves LEFT this makes it go RIGHT.
+//  If CLOCKWISE normally moves RIGHT this makes it go LEFT.
+//
+//#define REVERSE_SELECT_DIRECTION
+
+//
+// Encoder EMI Noise Filter
+//
+// This option increases encoder samples to filter out phantom encoder clicks caused by EMI noise.
+//
+//#define ENCODER_NOISE_FILTER
+#if ENABLED(ENCODER_NOISE_FILTER)
+  #define ENCODER_SAMPLES 10
+#endif
+
+//
+// Individual Axis Homing
+//
+// Add individual axis homing items (Home X, Home Y, and Home Z) to the LCD menu.
+//
+//#define INDIVIDUAL_AXIS_HOMING_MENU
+//#define INDIVIDUAL_AXIS_HOMING_SUBMENU
+
+//
+// SPEAKER/BUZZER
+//
+// If you have a speaker that can produce tones, enable it here.
+// By default Marlin assumes you have a buzzer with a fixed frequency.
+//
+//#define SPEAKER
+
+//
+// The duration and frequency for the UI feedback sound.
+// Set these to 0 to disable audio feedback in the LCD menus.
+//
+// Note: Test audio output with the G-Code:
+//  M300 S<frequency Hz> P<duration ms>
+//
+//#define LCD_FEEDBACK_FREQUENCY_DURATION_MS 2
+//#define LCD_FEEDBACK_FREQUENCY_HZ 5000
+
+//
+// Tone queue size, used to keep beeps from blocking execution.
+// Default is 4, or override here. Costs 4 bytes of SRAM per entry.
+//
+//#define TONE_QUEUE_LENGTH 4
+
+//
+// A sequence of tones to play at startup, in pairs of tone (Hz), duration (ms).
+// Silence in-between tones.
+//
+//#define STARTUP_TUNE { 698, 300, 0, 50, 523, 50, 0, 25, 494, 50, 0, 25, 523, 100, 0, 50, 554, 300, 0, 100, 523, 300 }
+
+//=============================================================================
+//======================== LCD / Controller Selection =========================
+//========================   (Character-based LCDs)   =========================
+//=============================================================================
+// @section lcd
+
+//
+// RepRapDiscount Smart Controller.
+// https://reprap.org/wiki/RepRapDiscount_Smart_Controller
+//
+// Note: Usually sold with a white PCB.
+//
+//#define REPRAP_DISCOUNT_SMART_CONTROLLER
+
+//
+// GT2560 (YHCB2004) LCD Display
+//
+// Requires Testato, Koepel softwarewire library and
+// Andriy Golovnya's LiquidCrystal_AIP31068 library.
+//
+//#define YHCB2004
+
+//
+// Original RADDS LCD Display+Encoder+SDCardReader
+// https://web.archive.org/web/20200719145306/doku.radds.org/dokumentation/lcd-display/
+//
+//#define RADDS_DISPLAY
+
+//
+// ULTIMAKER Controller.
+//
+//#define ULTIMAKERCONTROLLER
+
+//
+// ULTIPANEL as seen on Thingiverse.
+//
+//#define ULTIPANEL
+
+//
+// PanelOne from T3P3 (via RAMPS 1.4 AUX2/AUX3)
+// https://reprap.org/wiki/PanelOne
+//
+//#define PANEL_ONE
+
+//
+// GADGETS3D G3D LCD/SD Controller
+// https://reprap.org/wiki/RAMPS_1.3/1.4_GADGETS3D_Shield_with_Panel
+//
+// Note: Usually sold with a blue PCB.
+//
+//#define G3D_PANEL
+
+//
+// RigidBot Panel V1.0
+//
+//#define RIGIDBOT_PANEL
+
+//
+// Makeboard 3D Printer Parts 3D Printer Mini Display 1602 Mini Controller
+// https://www.aliexpress.com/item/32765887917.html
+//
+//#define MAKEBOARD_MINI_2_LINE_DISPLAY_1602
+
+//
+// ANET and Tronxy 20x4 Controller
+//
+//#define ZONESTAR_LCD            // Requires ADC_KEYPAD_PIN to be assigned to an analog pin.
+                                  // This LCD is known to be susceptible to electrical interference
+                                  // which scrambles the display.  Pressing any button clears it up.
+                                  // This is a LCD2004 display with 5 analog buttons.
+
+//
+// Generic 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+//
+//#define ULTRA_LCD
+
+//=============================================================================
+//======================== LCD / Controller Selection =========================
+//=====================   (I2C and Shift-Register LCDs)   =====================
+//=============================================================================
+
+//
+// CONTROLLER TYPE: I2C
+//
+// Note: These controllers require the installation of Arduino's LiquidCrystal_I2C
+// library. For more info: https://github.com/kiyoshigawa/LiquidCrystal_I2C
+//
+
+//
+// Elefu RA Board Control Panel
+// https://web.archive.org/web/20140823033947/www.elefu.com/index.php?route=product/product&product_id=53
+//
+//#define RA_CONTROL_PANEL
+
+//
+// Sainsmart (YwRobot) LCD Displays
+//
+// These require LiquidCrystal_I2C library:
+//   https://github.com/MarlinFirmware/New-LiquidCrystal
+//   https://github.com/fmalpartida/New-LiquidCrystal/wiki
+//
+//#define LCD_SAINSMART_I2C_1602
+//#define LCD_SAINSMART_I2C_2004
+
+//
+// Generic LCM1602 LCD adapter
+//
+//#define LCM1602
+
+//
+// PANELOLU2 LCD with status LEDs,
+// separate encoder and click inputs.
+//
+// Note: This controller requires Arduino's LiquidTWI2 library v1.2.3 or later.
+// For more info: https://github.com/lincomatic/LiquidTWI2
+//
+// Note: The PANELOLU2 encoder click input can either be directly connected to
+// a pin (if BTN_ENC defined to != -1) or read through I2C (when BTN_ENC == -1).
+//
+//#define LCD_I2C_PANELOLU2
+
+//
+// Panucatt VIKI LCD with status LEDs,
+// integrated click & L/R/U/D buttons, separate encoder inputs.
+//
+//#define LCD_I2C_VIKI
+
+//
+// CONTROLLER TYPE: Shift register panels
+//
+
+//
+// 2-wire Non-latching LCD SR from https://github.com/fmalpartida/New-LiquidCrystal/wiki/schematics#user-content-ShiftRegister_connection
+// LCD configuration: https://reprap.org/wiki/SAV_3D_LCD
+//
+//#define SAV_3DLCD
+
+//
+// 3-wire SR LCD with strobe using 74HC4094
+// https://github.com/mikeshub/SailfishLCD
+// Uses the code directly from Sailfish
+//
+//#define FF_INTERFACEBOARD
+
+//
+// TFT GLCD Panel with Marlin UI
+// Panel connected to main board by SPI or I2C interface.
+// See https://github.com/Serhiy-K/TFTGLCDAdapter
+//
+//#define TFTGLCD_PANEL_SPI
+//#define TFTGLCD_PANEL_I2C
+
+//=============================================================================
+//=======================   LCD / Controller Selection  =======================
+//=========================      (Graphical LCDs)      ========================
+//=============================================================================
+
+//
+// CONTROLLER TYPE: Graphical 128x64 (DOGM)
+//
+// IMPORTANT: The U8glib library is required for Graphical Display!
+//            https://github.com/olikraus/U8glib_Arduino
+//
+// NOTE: If the LCD is unresponsive you may need to reverse the plugs.
+//
+
+//
+// RepRapDiscount FULL GRAPHIC Smart Controller
+// https://reprap.org/wiki/RepRapDiscount_Full_Graphic_Smart_Controller
+//
+//#define REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER
+
+//
+// K.3D Full Graphic Smart Controller
+//
+//#define K3D_FULL_GRAPHIC_SMART_CONTROLLER
+
+//
+// ReprapWorld Graphical LCD
+// https://reprapworld.com/electronics/3d-printer-modules/autonomous-printing/graphical-lcd-screen-v1-0/
+//
+//#define REPRAPWORLD_GRAPHICAL_LCD
+
+//
+// Activate one of these if you have a Panucatt Devices
+// Viki 2.0 or mini Viki with Graphic LCD
+// https://www.panucatt.com
+//
+//#define VIKI2
+//#define miniVIKI
+
+//
+// Alfawise Ex8 printer LCD marked as WYH L12864 COG
+//
+//#define WYH_L12864
+
+//
+// MakerLab Mini Panel with graphic
+// controller and SD support - https://reprap.org/wiki/Mini_panel
+//
+//#define MINIPANEL
+
+//
+// MaKr3d Makr-Panel with graphic controller and SD support.
+// https://reprap.org/wiki/MaKrPanel
+//
+//#define MAKRPANEL
+
+//
+// Adafruit ST7565 Full Graphic Controller.
+// https://github.com/eboston/Adafruit-ST7565-Full-Graphic-Controller/
+//
+//#define ELB_FULL_GRAPHIC_CONTROLLER
+
+//
+// BQ LCD Smart Controller shipped by
+// default with the BQ Hephestos 2 and Witbox 2.
+//
+//#define BQ_LCD_SMART_CONTROLLER
+
+//
+// Cartesio UI
+// https://web.archive.org/web/20180605050442/mauk.cc/webshop/cartesio-shop/electronics/user-interface
+//
+//#define CARTESIO_UI
+
+//
+// LCD for Melzi Card with Graphical LCD
+//
+//#define LCD_FOR_MELZI
+
+//
+// Original Ulticontroller from Ultimaker 2 printer with SSD1309 I2C display and encoder
+// https://github.com/Ultimaker/Ultimaker2/tree/master/1249_Ulticontroller_Board_(x1)
+//
+//#define ULTI_CONTROLLER
+
+//
+// MKS MINI12864 with graphic controller and SD support
+// https://reprap.org/wiki/MKS_MINI_12864
+//
+//#define MKS_MINI_12864
+
+//
+// MKS MINI12864 V3 is an alias for FYSETC_MINI_12864_2_1. Type A/B. NeoPixel RGB Backlight.
+//
+//#define MKS_MINI_12864_V3
+
+//
+// MKS LCD12864A/B with graphic controller and SD support. Follows MKS_MINI_12864 pinout.
+// https://www.aliexpress.com/item/33018110072.html
+//
+//#define MKS_LCD12864A
+//#define MKS_LCD12864B
+
+//
+// FYSETC variant of the MINI12864 graphic controller with SD support
+// https://wiki.fysetc.com/Mini12864_Panel/
+//
+//#define FYSETC_MINI_12864_X_X    // Type C/D/E/F. No tunable RGB Backlight by default
+//#define FYSETC_MINI_12864_1_2    // Type C/D/E/F. Simple RGB Backlight (always on)
+//#define FYSETC_MINI_12864_2_0    // Type A/B. Discreet RGB Backlight
+//#define FYSETC_MINI_12864_2_1    // Type A/B. NeoPixel RGB Backlight
+//#define FYSETC_GENERIC_12864_1_1 // Larger display with basic ON/OFF backlight.
+
+//
+// BigTreeTech Mini 12864 V1.0 / V2.0 is an alias for FYSETC_MINI_12864_2_1. Type A/B. NeoPixel RGB Backlight.
+// https://github.com/bigtreetech/MINI-12864
+//
+//#define BTT_MINI_12864
+
+//
+// BEEZ MINI 12864 is an alias for FYSETC_MINI_12864_2_1. Type A/B. NeoPixel RGB Backlight.
+//
+//#define BEEZ_MINI_12864
+
+//
+// Factory display for Creality CR-10 / CR-7 / Ender-3
+// https://marlinfw.org/docs/hardware/controllers.html#cr10_stockdisplay
+//
+// Connect to EXP1 on RAMPS and compatible boards.
+//
+#define CR10_STOCKDISPLAY
+#define RET6_12864_LCD
+
+//
+// Ender-2 OEM display, a variant of the MKS_MINI_12864
+//
+//#define ENDER2_STOCKDISPLAY
+
+//
+// ANET and Tronxy 128×64 Full Graphics Controller as used on Anet A6
+//
+//#define ANET_FULL_GRAPHICS_LCD
+
+//
+// GUCOCO CTC 128×64 Full Graphics Controller as used on GUCOCO CTC A10S
+//
+//#define CTC_A10S_A13
+
+//
+// AZSMZ 12864 LCD with SD
+// https://www.aliexpress.com/item/32837222770.html
+//
+//#define AZSMZ_12864
+
+//
+// Silvergate GLCD controller
+// https://github.com/android444/Silvergate
+//
+//#define SILVER_GATE_GLCD_CONTROLLER
+
+//
+// eMotion Tech LCD with SD
+// https://www.reprap-france.com/produit/1234568748-ecran-graphique-128-x-64-points-2-1
+//
+//#define EMOTION_TECH_LCD
+
+//=============================================================================
+//==============================  OLED Displays  ==============================
+//=============================================================================
+
+//
+// SSD1306 OLED full graphics generic display
+//
+//#define U8GLIB_SSD1306
+
+//
+// SAV OLEd LCD module support using either SSD1306 or SH1106 based LCD modules
+//
+//#define SAV_3DGLCD
+#if ENABLED(SAV_3DGLCD)
+  #define U8GLIB_SSD1306
+  //#define U8GLIB_SH1106
+#endif
+
+//
+// TinyBoy2 128x64 OLED / Encoder Panel
+//
+//#define OLED_PANEL_TINYBOY2
+
+//
+// MKS OLED 1.3" 128×64 Full Graphics Controller
+// https://reprap.org/wiki/MKS_12864OLED
+//
+// Tiny, but very sharp OLED display
+//
+//#define MKS_12864OLED          // Uses the SH1106 controller (default)
+//#define MKS_12864OLED_SSD1306  // Uses the SSD1306 controller
+
+//
+// Zonestar OLED 128×64 Full Graphics Controller
+//
+//#define ZONESTAR_12864LCD           // Graphical (DOGM) with ST7920 controller
+//#define ZONESTAR_12864OLED          // 1.3" OLED with SH1106 controller (default)
+//#define ZONESTAR_12864OLED_SSD1306  // 0.96" OLED with SSD1306 controller
+
+//
+// Einstart S OLED SSD1306
+//
+//#define U8GLIB_SH1106_EINSTART
+
+//
+// Overlord OLED display/controller with i2c buzzer and LEDs
+//
+//#define OVERLORD_OLED
+
+//
+// FYSETC OLED 2.42" 128×64 Full Graphics Controller with WS2812 RGB
+// Where to find : https://www.aliexpress.com/item/4000345255731.html
+//#define FYSETC_242_OLED_12864   // Uses the SSD1309 controller
+
+//
+// K.3D SSD1309 OLED 2.42" 128×64 Full Graphics Controller
+//
+//#define K3D_242_OLED_CONTROLLER   // Software SPI
+
+//=============================================================================
+//========================== Extensible UI Displays ===========================
+//=============================================================================
+
+/**
+ * DGUS Touch Display with DWIN OS. (Choose one.)
+ *
+ * ORIGIN (Marlin DWIN_SET)
+ *  - Download https://github.com/coldtobi/Marlin_DGUS_Resources
+ *  - Copy the downloaded DWIN_SET folder to the SD card.
+ *  - Product: https://www.aliexpress.com/item/32993409517.html
+ *
+ * FYSETC (Supplier default)
+ *  - Download https://github.com/FYSETC/FYSTLCD-2.0
+ *  - Copy the downloaded SCREEN folder to the SD card.
+ *  - Product: https://www.aliexpress.com/item/32961471929.html
+ *
+ * HIPRECY (Supplier default)
+ *  - Download https://github.com/HiPrecy/Touch-Lcd-LEO
+ *  - Copy the downloaded DWIN_SET folder to the SD card.
+ *
+ * MKS (MKS-H43) (Supplier default)
+ *  - Download https://github.com/makerbase-mks/MKS-H43
+ *  - Copy the downloaded DWIN_SET folder to the SD card.
+ *  - Product: https://www.aliexpress.com/item/1005002008179262.html
+ *
+ * RELOADED (T5UID1)
+ *  - Download https://github.com/Neo2003/DGUS-reloaded/releases
+ *  - Copy the downloaded DWIN_SET folder to the SD card.
+ *
+ * IA_CREALITY (T5UID1)
+ *  - Download https://github.com/InsanityAutomation/Marlin/raw/CrealityDwin_2.0/TM3D_Combined480272_Landscape_V7.7z
+ *  - Copy the downloaded DWIN_SET folder to the SD card.
+ *
+ * E3S1PRO (T5L)
+ *  - Download https://github.com/CrealityOfficial/Ender-3S1/archive/3S1_Plus_Screen.zip
+ *  - Copy the downloaded DWIN_SET folder to the SD card.
+ *
+ * CREALITY_TOUCH
+ *  - CR-6 OEM touch screen. A DWIN display with touch.
+ *
+ * Flash display with DGUS Displays for Marlin:
+ *  - Format the SD card to FAT32 with an allocation size of 4kb.
+ *  - Download files as specified for your type of display.
+ *  - Plug the microSD card into the back of the display.
+ *  - Boot the display and wait for the update to complete.
+ *
+ * :[ 'ORIGIN', 'FYSETC', 'HYPRECY', 'MKS', 'RELOADED', 'IA_CREALITY', 'E3S1PRO', 'CREALITY_TOUCH' ]
+ */
+//#define DGUS_LCD_UI ORIGIN
+#if DGUS_UI_IS(MKS)
+  #define USE_MKS_GREEN_UI
+#elif DGUS_UI_IS(IA_CREALITY)
+  //#define LCD_SCREEN_ROTATE 90          // Portrait Mode or 800x480 displays
+  //#define IA_CREALITY_BOOT_DELAY 1500   // (ms)
+#endif
+
+//
+// Touch-screen LCD for Malyan M200/M300 printers
+//
+//#define MALYAN_LCD
+
+//
+// Touch UI for FTDI EVE (FT800/FT810) displays
+// See Configuration_adv.h for all configuration options.
+//
+//#define TOUCH_UI_FTDI_EVE
+
+//
+// Touch-screen LCD for Anycubic Chiron
+//
+//#define ANYCUBIC_LCD_CHIRON
+
+//
+// Touch-screen LCD for Anycubic i3 Mega
+//
+//#define ANYCUBIC_LCD_I3MEGA
+#if ENABLED(ANYCUBIC_LCD_I3MEGA)
+  //#define ANYCUBIC_LCD_GCODE_EXT  // Add ".gcode" to menu entries for DGUS clone compatibility
+#endif
+
+//
+// Touch-screen LCD for Anycubic Vyper
+//
+//#define ANYCUBIC_LCD_VYPER
+
+//
+// 320x240 Nextion 2.8" serial TFT Resistive Touch Screen NX3224T028
+//
+//#define NEXTION_TFT
+
+//
+// PanelDue touch controller by Escher3D
+// http://escher3d.com/pages/order/products/product2.php
+//
+//#define PANELDUE
+
+//
+// Third-party or vendor-customized controller interfaces.
+// Sources should be installed in 'src/lcd/extui'.
+//
+//#define EXTENSIBLE_UI
+
+#if ENABLED(EXTENSIBLE_UI)
+  //#define EXTUI_LOCAL_BEEPER // Enables use of local Beeper pin with external display
+#endif
+
+//=============================================================================
+//=============================== Graphical TFTs ==============================
+//=============================================================================
+
+/**
+ * Specific TFT Model Presets. Enable one of the following options
+ * or enable TFT_GENERIC and set sub-options.
+ */
+
+//
+// 480x320, 3.5", SPI Display with Rotary Encoder from MKS
+// Usually paired with MKS Robin Nano V2 & V3
+// https://github.com/makerbase-mks/MKS-TFT-Hardware/tree/master/MKS%20TS35
+//
+//#define MKS_TS35_V2_0
+
+//
+// 320x240, 2.4", FSMC Display From MKS
+// Usually paired with MKS Robin Nano V1.2
+//
+//#define MKS_ROBIN_TFT24
+
+//
+// 320x240, 2.8", FSMC Display From MKS
+// Usually paired with MKS Robin Nano V1.2
+//
+//#define MKS_ROBIN_TFT28
+
+//
+// 320x240, 3.2", FSMC Display From MKS
+// Usually paired with MKS Robin Nano V1.2
+//
+//#define MKS_ROBIN_TFT32
+
+//
+// 480x320, 3.5", FSMC Display From MKS
+// Usually paired with MKS Robin Nano V1.2
+//
+//#define MKS_ROBIN_TFT35
+
+//
+// 480x272, 4.3", FSMC Display From MKS
+//
+//#define MKS_ROBIN_TFT43
+
+//
+// 320x240, 3.2", FSMC Display From MKS
+// Usually paired with MKS Robin
+//
+//#define MKS_ROBIN_TFT_V1_1R
+
+//
+// 480x320, 3.5", FSMC Stock Display from Tronxy
+//
+//#define TFT_TRONXY_X5SA
+
+//
+// 480x320, 3.5", FSMC Stock Display from AnyCubic
+//
+//#define ANYCUBIC_TFT35
+
+//
+// 320x240, 2.8", FSMC Stock Display from Longer/Alfawise
+//
+//#define LONGER_LK_TFT28
+
+//
+// 320x240, 2.8", FSMC Stock Display from ET4
+//
+//#define ANET_ET4_TFT28
+
+//
+// 480x320, 3.5", FSMC Stock Display from ET5
+//
+//#define ANET_ET5_TFT35
+
+//
+// 1024x600, 7", RGB Stock Display with Rotary Encoder from BIQU BX
+// https://github.com/bigtreetech/BIQU-BX/tree/master/Hardware
+//
+//#define BIQU_BX_TFT70
+
+//
+// 480x320, 3.5", SPI Stock Display with Rotary Encoder from BIQU B1 SE Series
+// https://github.com/bigtreetech/TFT35-SPI/tree/master/v1
+//
+//#define BTT_TFT35_SPI_V1_0
+
+//
+// Generic TFT with detailed options
+//
+//#define TFT_GENERIC
+#if ENABLED(TFT_GENERIC)
+  // :[ 'AUTO', 'ST7735', 'ST7789', 'ST7796', 'R61505', 'ILI9328', 'ILI9341', 'ILI9488' ]
+  #define TFT_DRIVER AUTO
+
+  // Interface. Enable one of the following options:
+  //#define TFT_INTERFACE_FSMC
+  //#define TFT_INTERFACE_SPI
+
+  // TFT Resolution. Enable one of the following options:
+  //#define TFT_RES_320x240
+  //#define TFT_RES_480x272
+  //#define TFT_RES_480x320
+  //#define TFT_RES_1024x600
+#endif
+
+/**
+ * TFT UI - User Interface Selection. Enable one of the following options:
+ *
+ *   TFT_CLASSIC_UI - Emulated DOGM - 128x64 Upscaled
+ *   TFT_COLOR_UI   - Marlin Default Menus, Touch Friendly, using full TFT capabilities
+ *   TFT_LVGL_UI    - A Modern UI using LVGL
+ *
+ *   For LVGL_UI also copy the 'assets' folder from the build directory to the
+ *   root of your SD card, together with the compiled firmware.
+ */
+//#define TFT_CLASSIC_UI
+//#define TFT_COLOR_UI
+//#define TFT_LVGL_UI
+
+#if ENABLED(TFT_COLOR_UI)
+  /**
+   * TFT Font for Color_UI. Choose one of the following:
+   *
+   * NOTOSANS  - Default font with anti-aliasing. Supports Latin Extended and non-Latin characters.
+   * UNIFONT   - Lightweight font, no anti-aliasing. Supports Latin Extended and non-Latin characters.
+   * HELVETICA - Lightweight font, no anti-aliasing. Supports Basic Latin (0x0020-0x007F) and Latin-1 Supplement (0x0080-0x00FF) characters only.
+   */
+  #define TFT_FONT  NOTOSANS
+
+  /**
+   * TFT Theme for Color_UI. Choose one of the following or add a new one to 'Marlin/src/lcd/tft/themes' directory
+   *
+   * BLUE_MARLIN  - Default theme with 'midnight blue' background
+   * BLACK_MARLIN - Theme with 'black' background
+   * ANET_BLACK   - Theme used for Anet ET4/5
+   */
+  #define TFT_THEME BLACK_MARLIN
+
+  //#define TFT_SHARED_IO   // I/O is shared between TFT display and other devices. Disable async data transfer.
+
+  #define COMPACT_MARLIN_BOOT_LOGO  // Use compressed data to save Flash space
+#endif
+
+#if ENABLED(TFT_LVGL_UI)
+  //#define MKS_WIFI_MODULE // MKS WiFi module
+#endif
+
+/**
+ * TFT Rotation. Set to one of the following values:
+ *
+ *   TFT_ROTATE_90,  TFT_ROTATE_90_MIRROR_X,  TFT_ROTATE_90_MIRROR_Y,
+ *   TFT_ROTATE_180, TFT_ROTATE_180_MIRROR_X, TFT_ROTATE_180_MIRROR_Y,
+ *   TFT_ROTATE_270, TFT_ROTATE_270_MIRROR_X, TFT_ROTATE_270_MIRROR_Y,
+ *   TFT_MIRROR_X, TFT_MIRROR_Y, TFT_NO_ROTATION
+ */
+//#define TFT_ROTATION TFT_NO_ROTATION
+
+//=============================================================================
+//============================  Other Controllers  ============================
+//=============================================================================
+
+//
+// Ender-3 v2 OEM display. A DWIN display with Rotary Encoder.
+//
+//#define DWIN_CREALITY_LCD           // Creality UI
+//#define DWIN_LCD_PROUI              // Pro UI by MRiscoC
+//#define DWIN_CREALITY_LCD_JYERSUI   // Jyers UI by Jacob Myers
+//#define DWIN_MARLINUI_PORTRAIT      // MarlinUI (portrait orientation)
+//#define DWIN_MARLINUI_LANDSCAPE     // MarlinUI (landscape orientation)
+
+//
+// Touch Screen Settings
+//
+//#define TOUCH_SCREEN
+#if ENABLED(TOUCH_SCREEN)
+  #define BUTTON_DELAY_EDIT      50 // (ms) Button repeat delay for edit screens
+  #define BUTTON_DELAY_MENU     250 // (ms) Button repeat delay for menus
+
+  #if ANY(TFT_CLASSIC_UI, TFT_COLOR_UI)
+    //#define NO_BACK_MENU_ITEM     // Don't display a top menu item to go back to the parent menu
+  #endif
+
+  #define TOUCH_SCREEN_CALIBRATION
+
+  //#define TOUCH_CALIBRATION_X 12316
+  //#define TOUCH_CALIBRATION_Y -8981
+  //#define TOUCH_OFFSET_X        -43
+  //#define TOUCH_OFFSET_Y        257
+  //#define TOUCH_ORIENTATION TOUCH_LANDSCAPE
+
+  #if ALL(TOUCH_SCREEN_CALIBRATION, EEPROM_SETTINGS)
+    #define TOUCH_CALIBRATION_AUTO_SAVE // Auto save successful calibration values to EEPROM
+  #endif
+
+  #if ENABLED(TFT_COLOR_UI)
+    //#define SINGLE_TOUCH_NAVIGATION
+  #endif
+#endif
+
+//
+// RepRapWorld REPRAPWORLD_KEYPAD v1.1
+// https://reprapworld.com/products/electronics/ramps/keypad_v1_0_fully_assembled/
+//
+//#define REPRAPWORLD_KEYPAD
+//#define REPRAPWORLD_KEYPAD_MOVE_STEP 10.0 // (mm) Distance to move per key-press
+
+//
+// EasyThreeD ET-4000+ with button input and status LED
+//
+//#define EASYTHREED_UI
+
+//=============================================================================
+//=============================== Extra Features ==============================
+//=============================================================================
+
+// @section fans
+
+// Set number of user-controlled fans. Disable to use all board-defined fans.
+// :[1,2,3,4,5,6,7,8]
+//#define NUM_M106_FANS 1
+
+// Use software PWM to drive the fan, as for the heaters. This uses a very low frequency
+// which is not as annoying as with the hardware PWM. On the other hand, if this frequency
+// is too low, you should also increment SOFT_PWM_SCALE.
+#define FAN_SOFT_PWM
+
+// Incrementing this by 1 will double the software PWM frequency,
+// affecting heaters, and the fan if FAN_SOFT_PWM is enabled.
+// However, control resolution will be halved for each increment;
+// at zero value, there are 128 effective control positions.
+// :[0,1,2,3,4,5,6,7]
+#define SOFT_PWM_SCALE 5
+
+// If SOFT_PWM_SCALE is set to a value higher than 0, dithering can
+// be used to mitigate the associated resolution loss. If enabled,
+// some of the PWM cycles are stretched so on average the desired
+// duty cycle is attained.
+//#define SOFT_PWM_DITHER
+
+// @section extras
+
+// Support for the BariCUDA Paste Extruder
+//#define BARICUDA
+
+// @section lights
+
+// Temperature status LEDs that display the hotend and bed temperature.
+// If all hotends, bed temperature, and target temperature are under 54C
+// then the BLUE led is on. Otherwise the RED led is on. (1C hysteresis)
+//#define TEMP_STAT_LEDS
+
+// Support for BlinkM/CyzRgb
+//#define BLINKM
+
+// Support for PCA9632 PWM LED driver
+//#define PCA9632
+
+// Support for PCA9533 PWM LED driver
+//#define PCA9533
+
+/**
+ * RGB LED / LED Strip Control
+ *
+ * Enable support for an RGB LED connected to 5V digital pins, or
+ * an RGB Strip connected to MOSFETs controlled by digital pins.
+ *
+ * Adds the M150 command to set the LED (or LED strip) color.
+ * If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of
+ * luminance values can be set from 0 to 255.
+ * For NeoPixel LED an overall brightness parameter is also available.
+ *
+ *  === CAUTION ===
+ *  LED Strips require a MOSFET Chip between PWM lines and LEDs,
+ *  as the Arduino cannot handle the current the LEDs will require.
+ *  Failure to follow this precaution can destroy your Arduino!
+ *
+ *  NOTE: A separate 5V power supply is required! The NeoPixel LED needs
+ *  more current than the Arduino 5V linear regulator can produce.
+ *
+ *  Requires PWM frequency between 50 <> 100Hz (Check HAL or variant)
+ *  Use FAST_PWM_FAN, if possible, to reduce fan noise.
+ */
+
+// LED Type. Enable only one of the following two options:
+//#define RGB_LED
+//#define RGBW_LED
+
+#if ANY(RGB_LED, RGBW_LED)
+  //#define RGB_LED_R_PIN 34
+  //#define RGB_LED_G_PIN 43
+  //#define RGB_LED_B_PIN 35
+  //#define RGB_LED_W_PIN -1
+#endif
+
+#if ANY(RGB_LED, RGBW_LED, PCA9632)
+  //#define RGB_STARTUP_TEST              // For PWM pins, fade between all colors
+  #if ENABLED(RGB_STARTUP_TEST)
+    #define RGB_STARTUP_TEST_INNER_MS 10  // (ms) Reduce or increase fading speed
+  #endif
+#endif
+
+// Support for Adafruit NeoPixel LED driver
+//#define NEOPIXEL_LED
+#if ENABLED(NEOPIXEL_LED)
+  #define NEOPIXEL_TYPE          NEO_GRBW // NEO_GRBW, NEO_RGBW, NEO_GRB, NEO_RBG, etc.
+                                          // See https://github.com/adafruit/Adafruit_NeoPixel/blob/master/Adafruit_NeoPixel.h
+  //#define NEOPIXEL_PIN                4 // LED driving pin
+  //#define NEOPIXEL2_TYPE  NEOPIXEL_TYPE
+  //#define NEOPIXEL2_PIN               5
+  #define NEOPIXEL_PIXELS              30 // Number of LEDs in the strip. (Longest strip when NEOPIXEL2_SEPARATE is disabled.)
+  #define NEOPIXEL_IS_SEQUENTIAL          // Sequential display for temperature change - LED by LED. Disable to change all LEDs at once.
+  #define NEOPIXEL_BRIGHTNESS         127 // Initial brightness (0-255)
+  //#define NEOPIXEL_STARTUP_TEST         // Cycle through colors at startup
+
+  // Support for second Adafruit NeoPixel LED driver controlled with M150 S1 ...
+  //#define NEOPIXEL2_SEPARATE
+  #if ENABLED(NEOPIXEL2_SEPARATE)
+    #define NEOPIXEL2_PIXELS           15 // Number of LEDs in the second strip
+    #define NEOPIXEL2_BRIGHTNESS      127 // Initial brightness (0-255)
+    #define NEOPIXEL2_STARTUP_TEST        // Cycle through colors at startup
+    #define NEOPIXEL_M150_DEFAULT      -1 // Default strip for M150 without 'S'. Use -1 to set all by default.
+  #else
+    //#define NEOPIXEL2_INSERIES          // Default behavior is NeoPixel 2 in parallel
+  #endif
+
+  // Use some of the NeoPixel LEDs for static (background) lighting
+  //#define NEOPIXEL_BKGD_INDEX_FIRST   0 // Index of the first background LED
+  //#define NEOPIXEL_BKGD_INDEX_LAST    5 // Index of the last background LED
+  //#define NEOPIXEL_BKGD_COLOR         { 255, 255, 255, 0 }  // R, G, B, W
+  //#define NEOPIXEL_BKGD_TIMEOUT_COLOR {  25,  25,  25, 0 }  // R, G, B, W
+  //#define NEOPIXEL_BKGD_ALWAYS_ON       // Keep the backlight on when other NeoPixels are off
+#endif
+
+/**
+ * Printer Event LEDs
+ *
+ * During printing, the LEDs will reflect the printer status:
+ *
+ *  - Gradually change from blue to violet as the heated bed gets to target temp
+ *  - Gradually change from violet to red as the hotend gets to temperature
+ *  - Change to white to illuminate work surface
+ *  - Change to green once print has finished
+ *  - Turn off after the print has finished and the user has pushed a button
+ */
+#if ANY(BLINKM, RGB_LED, RGBW_LED, PCA9632, PCA9533, NEOPIXEL_LED)
+  #define PRINTER_EVENT_LEDS
+#endif
+
+// @section servos
+
+/**
+ * Number of servos
+ *
+ * For some servo-related options NUM_SERVOS will be set automatically.
+ * Set this manually if there are extra servos needing manual control.
+ * Set to 0 to turn off servo support.
+ */
+//#define NUM_SERVOS 3 // Note: Servo index starts with 0 for M280-M282 commands
+
+// (ms) Delay before the next move will start, to give the servo time to reach its target angle.
+// 300ms is a good value but you can try less delay.
+// If the servo can't reach the requested position, increase it.
+#define SERVO_DELAY { 300 }
+
+// Only power servos during movement, otherwise leave off to prevent jitter
+//#define DEACTIVATE_SERVOS_AFTER_MOVE
+
+// Edit servo angles with M281 and save to EEPROM with M500
+//#define EDITABLE_SERVO_ANGLES
+
+// Disable servo with M282 to reduce power consumption, noise, and heat when not in use
+//#define SERVO_DETACH_GCODE
diff --git a/config/examples/Sovol/SV-06/Configuration_adv.h b/config/examples/Sovol/SV-06/Configuration_adv.h
new file mode 100644
index 00000000000..f1ddaabc9c4
--- /dev/null
+++ b/config/examples/Sovol/SV-06/Configuration_adv.h
@@ -0,0 +1,4705 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2024 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * Configuration_adv.h
+ *
+ * Advanced settings.
+ * Only change these if you know exactly what you're doing.
+ * Some of these settings can damage your printer if improperly set!
+ *
+ * Basic settings can be found in Configuration.h
+ */
+#define CONFIGURATION_ADV_H_VERSION 02010300
+
+// @section develop
+
+/**
+ * Configuration Export
+ *
+ * Export the configuration as part of the build. (See signature.py)
+ * Output files are saved with the build (e.g., .pio/build/mega2560).
+ *
+ * See `build_all_examples --ini` as an example of config.ini archiving.
+ *
+ *  1 = marlin_config.json - Dictionary containing the configuration.
+ *      This file is also generated for CONFIGURATION_EMBEDDING.
+ *  2 = config.ini - File format for PlatformIO preprocessing.
+ *  3 = schema.json - The entire configuration schema. (13 = pattern groups)
+ *  4 = schema.yml - The entire configuration schema.
+ *  5 = Config.h - Minimal configuration by popular demand.
+ */
+//#define CONFIG_EXPORT 105 // :[1:'JSON', 2:'config.ini', 3:'schema.json', 4:'schema.yml', 5:'Config.h']
+
+//===========================================================================
+//============================= Thermal Settings ============================
+//===========================================================================
+// @section temperature
+
+/**
+ * Thermocouple sensors are quite sensitive to noise.  Any noise induced in
+ * the sensor wires, such as by stepper motor wires run in parallel to them,
+ * may result in the thermocouple sensor reporting spurious errors.  This
+ * value is the number of errors which can occur in a row before the error
+ * is reported.  This allows us to ignore intermittent error conditions while
+ * still detecting an actual failure, which should result in a continuous
+ * stream of errors from the sensor.
+ *
+ * Set this value to 0 to fail on the first error to occur.
+ */
+#define THERMOCOUPLE_MAX_ERRORS 15
+
+//
+// Custom Thermistor 1000 parameters
+//
+#if TEMP_SENSOR_0 == 1000
+  #define HOTEND0_PULLUP_RESISTOR_OHMS    4700 // Pullup resistor
+  #define HOTEND0_RESISTANCE_25C_OHMS    94162 // Resistance at 25C
+  #define HOTEND0_BETA                    4160 // Beta value
+  #define HOTEND0_SH_C_COEFF                 0 // Steinhart-Hart C coefficient
+#endif
+
+#if TEMP_SENSOR_1 == 1000
+  #define HOTEND1_PULLUP_RESISTOR_OHMS    4700 // Pullup resistor
+  #define HOTEND1_RESISTANCE_25C_OHMS   100000 // Resistance at 25C
+  #define HOTEND1_BETA                    3950 // Beta value
+  #define HOTEND1_SH_C_COEFF                 0 // Steinhart-Hart C coefficient
+#endif
+
+#if TEMP_SENSOR_2 == 1000
+  #define HOTEND2_PULLUP_RESISTOR_OHMS    4700 // Pullup resistor
+  #define HOTEND2_RESISTANCE_25C_OHMS   100000 // Resistance at 25C
+  #define HOTEND2_BETA                    3950 // Beta value
+  #define HOTEND2_SH_C_COEFF                 0 // Steinhart-Hart C coefficient
+#endif
+
+#if TEMP_SENSOR_3 == 1000
+  #define HOTEND3_PULLUP_RESISTOR_OHMS    4700 // Pullup resistor
+  #define HOTEND3_RESISTANCE_25C_OHMS   100000 // Resistance at 25C
+  #define HOTEND3_BETA                    3950 // Beta value
+  #define HOTEND3_SH_C_COEFF                 0 // Steinhart-Hart C coefficient
+#endif
+
+#if TEMP_SENSOR_4 == 1000
+  #define HOTEND4_PULLUP_RESISTOR_OHMS    4700 // Pullup resistor
+  #define HOTEND4_RESISTANCE_25C_OHMS   100000 // Resistance at 25C
+  #define HOTEND4_BETA                    3950 // Beta value
+  #define HOTEND4_SH_C_COEFF                 0 // Steinhart-Hart C coefficient
+#endif
+
+#if TEMP_SENSOR_5 == 1000
+  #define HOTEND5_PULLUP_RESISTOR_OHMS    4700 // Pullup resistor
+  #define HOTEND5_RESISTANCE_25C_OHMS   100000 // Resistance at 25C
+  #define HOTEND5_BETA                    3950 // Beta value
+  #define HOTEND5_SH_C_COEFF                 0 // Steinhart-Hart C coefficient
+#endif
+
+#if TEMP_SENSOR_6 == 1000
+  #define HOTEND6_PULLUP_RESISTOR_OHMS    4700 // Pullup resistor
+  #define HOTEND6_RESISTANCE_25C_OHMS   100000 // Resistance at 25C
+  #define HOTEND6_BETA                    3950 // Beta value
+  #define HOTEND6_SH_C_COEFF                 0 // Steinhart-Hart C coefficient
+#endif
+
+#if TEMP_SENSOR_7 == 1000
+  #define HOTEND7_PULLUP_RESISTOR_OHMS    4700 // Pullup resistor
+  #define HOTEND7_RESISTANCE_25C_OHMS   100000 // Resistance at 25C
+  #define HOTEND7_BETA                    3950 // Beta value
+  #define HOTEND7_SH_C_COEFF                 0 // Steinhart-Hart C coefficient
+#endif
+
+#if TEMP_SENSOR_BED == 1000
+  #define BED_PULLUP_RESISTOR_OHMS        4700 // Pullup resistor
+  #define BED_RESISTANCE_25C_OHMS       100000 // Resistance at 25C
+  #define BED_BETA                        3950 // Beta value
+  #define BED_SH_C_COEFF                     0 // Steinhart-Hart C coefficient
+#endif
+
+#if TEMP_SENSOR_CHAMBER == 1000
+  #define CHAMBER_PULLUP_RESISTOR_OHMS    4700 // Pullup resistor
+  #define CHAMBER_RESISTANCE_25C_OHMS   100000 // Resistance at 25C
+  #define CHAMBER_BETA                    3950 // Beta value
+  #define CHAMBER_SH_C_COEFF                 0 // Steinhart-Hart C coefficient
+#endif
+
+#if TEMP_SENSOR_COOLER == 1000
+  #define COOLER_PULLUP_RESISTOR_OHMS     4700 // Pullup resistor
+  #define COOLER_RESISTANCE_25C_OHMS    100000 // Resistance at 25C
+  #define COOLER_BETA                     3950 // Beta value
+  #define COOLER_SH_C_COEFF                  0 // Steinhart-Hart C coefficient
+#endif
+
+#if TEMP_SENSOR_PROBE == 1000
+  #define PROBE_PULLUP_RESISTOR_OHMS      4700 // Pullup resistor
+  #define PROBE_RESISTANCE_25C_OHMS     100000 // Resistance at 25C
+  #define PROBE_BETA                      3950 // Beta value
+  #define PROBE_SH_C_COEFF                   0 // Steinhart-Hart C coefficient
+#endif
+
+#if TEMP_SENSOR_BOARD == 1000
+  #define BOARD_PULLUP_RESISTOR_OHMS      4700 // Pullup resistor
+  #define BOARD_RESISTANCE_25C_OHMS     100000 // Resistance at 25C
+  #define BOARD_BETA                      3950 // Beta value
+  #define BOARD_SH_C_COEFF                   0 // Steinhart-Hart C coefficient
+#endif
+
+#if TEMP_SENSOR_REDUNDANT == 1000
+  #define REDUNDANT_PULLUP_RESISTOR_OHMS  4700 // Pullup resistor
+  #define REDUNDANT_RESISTANCE_25C_OHMS 100000 // Resistance at 25C
+  #define REDUNDANT_BETA                  3950 // Beta value
+  #define REDUNDANT_SH_C_COEFF               0 // Steinhart-Hart C coefficient
+#endif
+
+/**
+ * Thermocouple Options — for MAX6675 (-2), MAX31855 (-3), and MAX31865 (-5).
+ */
+//#define TEMP_SENSOR_FORCE_HW_SPI                // Ignore SCK/MOSI/MISO pins; use CS and the default SPI bus.
+//#define MAX31865_SENSOR_WIRES_0 2               // (2-4) Number of wires for the probe connected to a MAX31865 board.
+//#define MAX31865_SENSOR_WIRES_1 2
+//#define MAX31865_SENSOR_WIRES_2 2
+
+//#define MAX31865_50HZ_FILTER                    // Use a 50Hz filter instead of the default 60Hz.
+//#define MAX31865_USE_READ_ERROR_DETECTION       // Treat value spikes (20°C delta in under 1s) as read errors.
+
+//#define MAX31865_USE_AUTO_MODE                  // Read faster and more often than 1-shot; bias voltage always on; slight effect on RTD temperature.
+//#define MAX31865_MIN_SAMPLING_TIME_MSEC     100 // (ms) 1-shot: minimum read interval. Reduces bias voltage effects by leaving sensor unpowered for longer intervals.
+//#define MAX31865_IGNORE_INITIAL_FAULTY_READS 10 // Ignore some read faults (keeping the temperature reading) to work around a possible issue (#23439).
+
+//#define MAX31865_WIRE_OHMS_0              0.95f // For 2-wire, set the wire resistances for more accurate readings.
+//#define MAX31865_WIRE_OHMS_1              0.0f
+//#define MAX31865_WIRE_OHMS_2              0.0f
+
+/**
+ * Hephestos 2 24V heated bed upgrade kit.
+ * https://www.en3dstudios.com/product/bq-hephestos-2-heated-bed-kit/
+ */
+//#define HEPHESTOS2_HEATED_BED_KIT
+#if ENABLED(HEPHESTOS2_HEATED_BED_KIT)
+  #define HEATER_BED_INVERTING true
+#endif
+
+//
+// Heated Bed Bang-Bang options
+//
+#if DISABLED(PIDTEMPBED)
+  #define BED_CHECK_INTERVAL 5000   // (ms) Interval between checks in bang-bang control
+  #if ENABLED(BED_LIMIT_SWITCHING)
+    #define BED_HYSTERESIS 2        // (°C) Only set the relevant heater state when ABS(T-target) > BED_HYSTERESIS
+  #endif
+#endif
+
+//
+// Heated Chamber options
+//
+#if DISABLED(PIDTEMPCHAMBER)
+  #define CHAMBER_CHECK_INTERVAL 5000   // (ms) Interval between checks in bang-bang control
+  #if ENABLED(CHAMBER_LIMIT_SWITCHING)
+    #define CHAMBER_HYSTERESIS 2        // (°C) Only set the relevant heater state when ABS(T-target) > CHAMBER_HYSTERESIS
+  #endif
+#endif
+
+#if TEMP_SENSOR_CHAMBER
+  //#define HEATER_CHAMBER_PIN      P2_04   // Required heater on/off pin (example: SKR 1.4 Turbo HE1 plug)
+  //#define HEATER_CHAMBER_INVERTING false
+  //#define FAN1_PIN                   -1   // Remove the fan signal on pin P2_04 (example: SKR 1.4 Turbo HE1 plug)
+
+  //#define CHAMBER_FAN               // Enable a fan on the chamber
+  #if ENABLED(CHAMBER_FAN)
+    //#define CHAMBER_FAN_INDEX   2   // Index of a fan to repurpose as the chamber fan. (Default: first unused fan)
+    #define CHAMBER_FAN_MODE      2   // Fan control mode: 0=Static; 1=Linear increase when temp is higher than target; 2=V-shaped curve; 3=similar to 1 but fan is always on.
+    #if CHAMBER_FAN_MODE == 0
+      #define CHAMBER_FAN_BASE  255   // Chamber fan PWM (0-255)
+    #elif CHAMBER_FAN_MODE == 1
+      #define CHAMBER_FAN_BASE  128   // Base chamber fan PWM (0-255); turns on when chamber temperature is above the target
+      #define CHAMBER_FAN_FACTOR 25   // PWM increase per °C above target
+    #elif CHAMBER_FAN_MODE == 2
+      #define CHAMBER_FAN_BASE  128   // Minimum chamber fan PWM (0-255)
+      #define CHAMBER_FAN_FACTOR 25   // PWM increase per °C difference from target
+    #elif CHAMBER_FAN_MODE == 3
+      #define CHAMBER_FAN_BASE  128   // Base chamber fan PWM (0-255)
+      #define CHAMBER_FAN_FACTOR 25   // PWM increase per °C above target
+    #endif
+  #endif
+
+  //#define CHAMBER_VENT              // Enable a servo-controlled vent on the chamber
+  #if ENABLED(CHAMBER_VENT)
+    #define CHAMBER_VENT_SERVO_NR  1  // Index of the vent servo
+    #define HIGH_EXCESS_HEAT_LIMIT 5  // How much above target temp to consider there is excess heat in the chamber
+    #define LOW_EXCESS_HEAT_LIMIT  3
+    #define MIN_COOLING_SLOPE_TIME_CHAMBER_VENT 20
+    #define MIN_COOLING_SLOPE_DEG_CHAMBER_VENT 1.5
+  #endif
+#endif
+
+//
+// Laser Cooler options
+//
+#if TEMP_SENSOR_COOLER
+  #define COOLER_MINTEMP           8  // (°C)
+  #define COOLER_MAXTEMP          26  // (°C)
+  #define COOLER_DEFAULT_TEMP     16  // (°C)
+  #define TEMP_COOLER_HYSTERESIS   1  // (°C) Temperature proximity considered "close enough" to the target
+  #define COOLER_PIN               8  // Laser cooler on/off pin used to control power to the cooling element (e.g., TEC, External chiller via relay)
+  #define COOLER_INVERTING     false
+  #define TEMP_COOLER_PIN         15  // Laser/Cooler temperature sensor pin. ADC is required.
+  #define COOLER_FAN                  // Enable a fan on the cooler, Fan# 0,1,2,3 etc.
+  #define COOLER_FAN_INDEX         0  // FAN number 0, 1, 2 etc. e.g.
+  #if ENABLED(COOLER_FAN)
+    #define COOLER_FAN_BASE      100  // Base Cooler fan PWM (0-255); turns on when Cooler temperature is above the target
+    #define COOLER_FAN_FACTOR     25  // PWM increase per °C above target
+  #endif
+#endif
+
+//
+// Motherboard Sensor options
+//
+#if TEMP_SENSOR_BOARD
+  #define THERMAL_PROTECTION_BOARD   // Halt the printer if the board sensor leaves the temp range below.
+  #define BOARD_MINTEMP           8  // (°C)
+  #define BOARD_MAXTEMP          70  // (°C)
+  //#define TEMP_BOARD_PIN -1        // Board temp sensor pin override.
+#endif
+
+//
+// SoC Sensor options
+//
+#if TEMP_SENSOR_SOC
+  #define THERMAL_PROTECTION_SOC     // Halt the printer if the SoC sensor leaves the temp range below.
+  #define SOC_MAXTEMP            85  // (°C)
+#endif
+
+/**
+ * Thermal Protection provides additional protection to your printer from damage
+ * and fire. Marlin always includes safe min and max temperature ranges which
+ * protect against a broken or disconnected thermistor wire.
+ *
+ * The issue: If a thermistor falls out, it will report the much lower
+ * temperature of the air in the room, and the the firmware will keep
+ * the heater on.
+ *
+ * The solution: Once the temperature reaches the target, start observing.
+ * If the temperature stays too far below the target (hysteresis) for too
+ * long (period), the firmware will halt the machine as a safety precaution.
+ *
+ * If you get false positives for "Thermal Runaway", increase
+ * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
+ */
+#if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
+
+  //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
+  #if ENABLED(ADAPTIVE_FAN_SLOWING)
+    //#define REPORT_ADAPTIVE_FAN_SLOWING     // Report fan slowing activity to the console
+    #if ANY(MPCTEMP, PIDTEMP)
+      //#define TEMP_TUNING_MAINTAIN_FAN      // Don't slow down the fan speed during M303 or M306 T
+    #endif
+  #endif
+
+  /**
+   * Whenever an M104, M109, or M303 increases the target temperature, the
+   * firmware will wait for the WATCH_TEMP_PERIOD to expire. If the temperature
+   * hasn't increased by WATCH_TEMP_INCREASE degrees, the machine is halted and
+   * requires a hard reset. This test restarts with any M104/M109/M303, but only
+   * if the current temperature is far enough below the target for a reliable
+   * test.
+   *
+   * If you get false positives for "Heating failed", increase WATCH_TEMP_PERIOD
+   * and/or decrease WATCH_TEMP_INCREASE. WATCH_TEMP_INCREASE should not be set
+   * below 2.
+   */
+  #define WATCH_TEMP_PERIOD  40               // (seconds)
+  #define WATCH_TEMP_INCREASE 2               // (°C)
+#endif
+
+/**
+ * Thermal Protection parameters for the bed are just as above for hotends.
+ */
+#if TEMP_SENSOR_BED && ENABLED(THERMAL_PROTECTION_BED)
+  #define THERMAL_PROTECTION_BED_PERIOD        20 // (seconds)
+  #define THERMAL_PROTECTION_BED_HYSTERESIS     2 // (°C)
+
+  /**
+   * As described above, except for the bed (M140/M190/M303).
+   */
+  #define WATCH_BED_TEMP_PERIOD                60 // (seconds)
+  #define WATCH_BED_TEMP_INCREASE               2 // (°C)
+#endif
+
+/**
+ * Thermal Protection parameters for the heated chamber.
+ */
+#if TEMP_SENSOR_CHAMBER && ENABLED(THERMAL_PROTECTION_CHAMBER)
+  #define THERMAL_PROTECTION_CHAMBER_PERIOD    20 // (seconds)
+  #define THERMAL_PROTECTION_CHAMBER_HYSTERESIS 2 // (°C)
+
+  /**
+   * Heated chamber watch settings (M141/M191).
+   */
+  #define WATCH_CHAMBER_TEMP_PERIOD            60 // (seconds)
+  #define WATCH_CHAMBER_TEMP_INCREASE           2 // (°C)
+#endif
+
+/**
+ * Thermal Protection parameters for the laser cooler.
+ */
+#if TEMP_SENSOR_COOLER && ENABLED(THERMAL_PROTECTION_COOLER)
+  #define THERMAL_PROTECTION_COOLER_PERIOD     10 // (seconds)
+  #define THERMAL_PROTECTION_COOLER_HYSTERESIS  3 // (°C)
+
+  /**
+   * Laser cooling watch settings (M143/M193).
+   */
+  #define WATCH_COOLER_TEMP_PERIOD             60 // (seconds)
+  #define WATCH_COOLER_TEMP_INCREASE            3 // (°C)
+#endif
+
+#if ANY(THERMAL_PROTECTION_HOTENDS, THERMAL_PROTECTION_BED, THERMAL_PROTECTION_CHAMBER, THERMAL_PROTECTION_COOLER)
+  /**
+   * Thermal Protection Variance Monitor - EXPERIMENTAL
+   * Kill the machine on a stuck temperature sensor.
+   *
+   * This feature may cause some thermally-stable systems to halt. Be sure to test it thoroughly under
+   * a variety of conditions. Disable if you get false positives.
+   *
+   * This feature ensures that temperature sensors are updating regularly. If sensors die or get "stuck",
+   * or if Marlin stops reading them, temperatures will remain constant while heaters may still be powered!
+   * This feature only monitors temperature changes so it should catch any issue, hardware or software.
+   *
+   * By default it uses the THERMAL_PROTECTION_*_PERIOD constants (above) for the time window, within which
+   * at least one temperature change must occur, to indicate that sensor polling is working. If any monitored
+   * heater's temperature remains totally constant (without even a fractional change) during this period, a
+   * thermal malfunction error occurs and the printer is halted.
+   *
+   * A very stable heater might produce a false positive and halt the printer. In this case, try increasing
+   * the corresponding THERMAL_PROTECTION_*_PERIOD constant a bit. Keep in mind that uncontrolled heating
+   * shouldn't be allowed to persist for more than a minute or two.
+   *
+   * Be careful to distinguish false positives from real sensor issues before disabling this feature. If the
+   * heater's temperature appears even slightly higher than expected after restarting, you may have a real
+   * thermal malfunction. Check the temperature graph in your host for any unusual bumps.
+   */
+  //#define THERMAL_PROTECTION_VARIANCE_MONITOR
+  #if ENABLED(THERMAL_PROTECTION_VARIANCE_MONITOR)
+    // Variance detection window to override the THERMAL_PROTECTION...PERIOD settings above.
+    // Keep in mind that some heaters heat up faster than others.
+    //#define THERMAL_PROTECTION_VARIANCE_MONITOR_PERIOD 30  // (s) Override all watch periods
+  #endif
+#endif
+
+#if ENABLED(PIDTEMP)
+  // Add an additional term to the heater power, proportional to the extrusion speed.
+  // A well-chosen Kc value should add just enough power to melt the increased material volume.
+  //#define PID_EXTRUSION_SCALING
+  #if ENABLED(PID_EXTRUSION_SCALING)
+    #define DEFAULT_Kc (100) // heating power = Kc * e_speed
+    #define LPQ_MAX_LEN 50
+  #endif
+
+  /**
+   * Add an additional term to the heater power, proportional to the fan speed.
+   * A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
+   * You can either just add a constant compensation with the DEFAULT_Kf value
+   * or follow the instruction below to get speed-dependent compensation.
+   *
+   * Constant compensation (use only with fan speeds of 0% and 100%)
+   * ---------------------------------------------------------------------
+   * A good starting point for the Kf-value comes from the calculation:
+   *   kf = (power_fan * eff_fan) / power_heater * 255
+   * where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
+   *
+   * Example:
+   *   Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
+   *   Kf = (2.4W * 0.8) / 40W * 255 = 12.24
+   *
+   * Fan-speed dependent compensation
+   * --------------------------------
+   * 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
+   *    Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
+   *    If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
+   *    drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
+   * 2. Note the Kf-value for fan-speed at 100%
+   * 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
+   * 4. Repeat step 1. and 2. for this fan speed.
+   * 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
+   *    PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
+   */
+  //#define PID_FAN_SCALING
+  #if ENABLED(PID_FAN_SCALING)
+    //#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
+    #if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
+      // The alternative definition is used for an easier configuration.
+      // Just figure out Kf at full speed (255) and PID_FAN_SCALING_MIN_SPEED.
+      // DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
+
+      #define PID_FAN_SCALING_AT_FULL_SPEED 13.0        //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
+      #define PID_FAN_SCALING_AT_MIN_SPEED   6.0        //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
+      #define PID_FAN_SCALING_MIN_SPEED     10.0        // Minimum fan speed at which to enable PID_FAN_SCALING
+
+      #define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
+      #define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
+
+    #else
+      #define PID_FAN_SCALING_LIN_FACTOR (0)             // Power-loss due to cooling = Kf * (fan_speed)
+      #define DEFAULT_Kf 10                              // A constant value added to the PID-tuner
+      #define PID_FAN_SCALING_MIN_SPEED 10               // Minimum fan speed at which to enable PID_FAN_SCALING
+    #endif
+  #endif
+#endif
+
+/**
+ * Automatic Temperature Mode
+ *
+ * Dynamically adjust the hotend target temperature based on planned E moves.
+ *
+ * (Contrast with PID_EXTRUSION_SCALING, which tracks E movement and adjusts PID
+ *  behavior using an additional kC value.)
+ *
+ * Autotemp is calculated by (mintemp + factor * mm_per_sec), capped to maxtemp.
+ *
+ * Enable Autotemp Mode with M104/M109 F<factor> S<mintemp> B<maxtemp>.
+ * Disable by sending M104/M109 with no F parameter (or F0 with AUTOTEMP_PROPORTIONAL).
+ */
+#define AUTOTEMP
+#if ENABLED(AUTOTEMP)
+  #define AUTOTEMP_OLDWEIGHT    0.98  // Factor used to weight previous readings (0.0 < value < 1.0)
+  #define AUTOTEMP_MIN          210
+  #define AUTOTEMP_MAX          250
+  #define AUTOTEMP_FACTOR       0.1f
+  // Turn on AUTOTEMP on M104/M109 by default using proportions set here
+  //#define AUTOTEMP_PROPORTIONAL
+  #if ENABLED(AUTOTEMP_PROPORTIONAL)
+    #define AUTOTEMP_MIN_P      0 // (°C) Added to the target temperature
+    #define AUTOTEMP_MAX_P      5 // (°C) Added to the target temperature
+    #define AUTOTEMP_FACTOR_P   1 // Apply this F parameter by default (overridden by M104/M109 F)
+  #endif
+#endif
+
+// Show Temperature ADC value
+// Enable for M105 to include ADC values read from temperature sensors.
+//#define SHOW_TEMP_ADC_VALUES
+
+/**
+ * High Temperature Thermistor Support
+ *
+ * Thermistors able to support high temperature tend to have a hard time getting
+ * good readings at room and lower temperatures. This means TEMP_SENSOR_X_RAW_LO_TEMP
+ * will probably be caught when the heating element first turns on during the
+ * preheating process, which will trigger a MINTEMP error as a safety measure
+ * and force stop everything.
+ * To circumvent this limitation, we allow for a preheat time (during which,
+ * MINTEMP error won't be triggered) and add a min_temp buffer to handle
+ * aberrant readings.
+ *
+ * If you want to enable this feature for your hotend thermistor(s)
+ * uncomment and set values > 0 in the constants below
+ */
+
+// The number of consecutive low temperature errors that can occur
+// before a MINTEMP error is triggered. (Shouldn't be more than 10.)
+//#define MAX_CONSECUTIVE_LOW_TEMPERATURE_ERROR_ALLOWED 0
+
+/**
+ * The number of milliseconds a hotend will preheat before starting to check
+ * the temperature. This value should NOT be set to the time it takes the
+ * hot end to reach the target temperature, but the time it takes to reach
+ * the minimum temperature your thermistor can read. The lower the better/safer.
+ * This shouldn't need to be more than 30 seconds (30000)
+ */
+//#define PREHEAT_TIME_HOTEND_MS 0
+//#define PREHEAT_TIME_BED_MS 0
+
+// @section extruder
+
+/**
+ * Extruder runout prevention.
+ * If the machine is idle and the temperature over MINTEMP
+ * then extrude some filament every couple of SECONDS.
+ */
+//#define EXTRUDER_RUNOUT_PREVENT
+#if ENABLED(EXTRUDER_RUNOUT_PREVENT)
+  #define EXTRUDER_RUNOUT_MINTEMP 190
+  #define EXTRUDER_RUNOUT_SECONDS 30
+  #define EXTRUDER_RUNOUT_SPEED 1500  // (mm/min)
+  #define EXTRUDER_RUNOUT_EXTRUDE 5   // (mm)
+#endif
+
+/**
+ * Hotend Idle Timeout
+ * Prevent filament in the nozzle from charring and causing a critical jam.
+ */
+//#define HOTEND_IDLE_TIMEOUT
+#if ENABLED(HOTEND_IDLE_TIMEOUT)
+  #define HOTEND_IDLE_TIMEOUT_SEC (5*60)    // (seconds) Time without extruder movement to trigger protection
+  #define HOTEND_IDLE_MIN_TRIGGER   180     // (°C) Minimum temperature to enable hotend protection
+  #define HOTEND_IDLE_NOZZLE_TARGET   0     // (°C) Safe temperature for the nozzle after timeout
+  #define HOTEND_IDLE_BED_TARGET      0     // (°C) Safe temperature for the bed after timeout
+#endif
+
+// @section temperature
+
+// Calibration for AD595 / AD8495 sensor to adjust temperature measurements.
+// The final temperature is calculated as (measuredTemp * GAIN) + OFFSET.
+#define TEMP_SENSOR_AD595_OFFSET  0.0
+#define TEMP_SENSOR_AD595_GAIN    1.0
+#define TEMP_SENSOR_AD8495_OFFSET 0.0
+#define TEMP_SENSOR_AD8495_GAIN   1.0
+
+// @section fans
+
+/**
+ * Controller Fan
+ * To cool down the stepper drivers and MOSFETs.
+ *
+ * The fan turns on automatically whenever any driver is enabled and turns
+ * off (or reduces to idle speed) shortly after drivers are turned off.
+ */
+//#define USE_CONTROLLER_FAN
+#if ENABLED(USE_CONTROLLER_FAN)
+  //#define CONTROLLER_FAN_PIN -1           // Set a custom pin for the controller fan
+  //#define CONTROLLER_FAN2_PIN -1          // Set a custom pin for second controller fan
+  //#define CONTROLLER_FAN_USE_Z_ONLY       // With this option only the Z axis is considered
+  //#define CONTROLLER_FAN_IGNORE_Z         // Ignore Z stepper. Useful when stepper timeout is disabled.
+  #define CONTROLLERFAN_SPEED_MIN         0 // (0-255) Minimum speed. (If set below this value the fan is turned off.)
+  #define CONTROLLERFAN_SPEED_ACTIVE    255 // (0-255) Active speed, used when any motor is enabled
+  #define CONTROLLERFAN_SPEED_IDLE        0 // (0-255) Idle speed, used when motors are disabled
+  #define CONTROLLERFAN_IDLE_TIME        60 // (seconds) Extra time to keep the fan running after disabling motors
+
+  // Use TEMP_SENSOR_BOARD as a trigger for enabling the controller fan
+  //#define CONTROLLER_FAN_MIN_BOARD_TEMP 40  // (°C) Turn on the fan if the board reaches this temperature
+
+  // Use TEMP_SENSOR_SOC as a trigger for enabling the controller fan
+  //#define CONTROLLER_FAN_MIN_SOC_TEMP 40  // (°C) Turn on the fan if the SoC reaches this temperature
+
+  //#define CONTROLLER_FAN_EDITABLE         // Enable M710 configurable settings
+  #if ENABLED(CONTROLLER_FAN_EDITABLE)
+    #define CONTROLLER_FAN_MENU             // Enable the Controller Fan submenu
+  #endif
+#endif
+
+/**
+ * Fan Kickstart
+ * When part cooling or controller fans first start, run at a speed that
+ * gets it spinning reliably for a short time before setting the requested speed.
+ * (Does not work on Sanguinololu with FAN_SOFT_PWM.)
+ */
+//#define FAN_KICKSTART_TIME  100  // (ms)
+//#define FAN_KICKSTART_POWER 180  // 64-255
+//#define FAN_KICKSTART_LINEAR     // Set kickstart time linearly based on the speed, e.g., for 20% (51) it will be FAN_KICKSTART_TIME * 0.2.
+                                   // Useful for quick speed up to low speed. Kickstart power must be set to 255.
+
+// Some coolers may require a non-zero "off" state.
+//#define FAN_OFF_PWM  1
+
+/**
+ * PWM Fan Scaling
+ *
+ * Define the min/max speeds for PWM fans (as set with M106).
+ *
+ * With these options the M106 0-255 value range is scaled to a subset
+ * to ensure that the fan has enough power to spin, or to run lower
+ * current fans with higher current. (e.g., 5V/12V fans with 12V/24V)
+ * Value 0 always turns off the fan.
+ *
+ * Define one or both of these to override the default 0-255 range.
+ */
+//#define FAN_MIN_PWM 50
+//#define FAN_MAX_PWM 128
+
+/**
+ * Fan Fast PWM
+ *
+ * Combinations of PWM Modes, prescale values and TOP resolutions are used internally
+ * to produce a frequency as close as possible to the desired frequency.
+ *
+ * FAST_PWM_FAN_FREQUENCY
+ *   Set this to your desired frequency.
+ *   For AVR, if left undefined this defaults to F = F_CPU/(2*255*1)
+ *            i.e., F = 31.4kHz on 16MHz micro-controllers or F = 39.2kHz on 20MHz micro-controllers.
+ *   For non AVR, if left undefined this defaults to F = 1Khz.
+ *   This F value is only to protect the hardware from an absence of configuration
+ *   and not to complete it when users are not aware that the frequency must be specifically set to support the target board.
+ *
+ *   NOTE: Setting very low frequencies (< 10 Hz) may result in unexpected timer behavior.
+ *         Setting very high frequencies can damage your hardware.
+ *
+ * USE_OCR2A_AS_TOP [undefined by default]
+ *   Boards that use TIMER2 for PWM have limitations resulting in only a few possible frequencies on TIMER2:
+ *   16MHz MCUs: [62.5kHz, 31.4kHz (default), 7.8kHz, 3.92kHz, 1.95kHz, 977Hz, 488Hz, 244Hz, 60Hz, 122Hz, 30Hz]
+ *   20MHz MCUs: [78.1kHz, 39.2kHz (default), 9.77kHz, 4.9kHz, 2.44kHz, 1.22kHz, 610Hz, 305Hz, 153Hz, 76Hz, 38Hz]
+ *   A greater range can be achieved by enabling USE_OCR2A_AS_TOP. But note that this option blocks the use of
+ *   PWM on pin OC2A. Only use this option if you don't need PWM on 0C2A. (Check your schematic.)
+ *   USE_OCR2A_AS_TOP sacrifices duty cycle control resolution to achieve this broader range of frequencies.
+ */
+//#define FAST_PWM_FAN    // Increase the fan PWM frequency. Removes the PWM noise but increases heating in the FET/Arduino
+#if ENABLED(FAST_PWM_FAN)
+  //#define FAST_PWM_FAN_FREQUENCY 31400  // Define here to override the defaults below
+  //#define USE_OCR2A_AS_TOP
+  #ifndef FAST_PWM_FAN_FREQUENCY
+    #ifdef __AVR__
+      #define FAST_PWM_FAN_FREQUENCY ((F_CPU) / (2 * 255 * 1))
+    #else
+      #define FAST_PWM_FAN_FREQUENCY 1000U
+    #endif
+  #endif
+#endif
+
+/**
+ * Assign more PWM fans for part cooling, synchronized with Fan 0
+ */
+//#define REDUNDANT_PART_COOLING_FAN 1  // Index of the first fan to synchronize with Fan 0
+#ifdef REDUNDANT_PART_COOLING_FAN
+  //#define NUM_REDUNDANT_FANS 1        // Number of sequential fans to synchronize with Fan 0
+#endif
+
+/**
+ * Extruder cooling fans
+ *
+ * Extruder auto fans automatically turn on when their extruders'
+ * temperatures go above EXTRUDER_AUTO_FAN_TEMPERATURE.
+ *
+ * Your board's pins file specifies the recommended pins. Override those here
+ * or set to -1 to disable completely.
+ *
+ * Multiple extruders can be assigned to the same pin in which case
+ * the fan will turn on when any selected extruder is above the threshold.
+ */
+#define E0_AUTO_FAN_PIN -1
+#define E1_AUTO_FAN_PIN -1
+#define E2_AUTO_FAN_PIN -1
+#define E3_AUTO_FAN_PIN -1
+#define E4_AUTO_FAN_PIN -1
+#define E5_AUTO_FAN_PIN -1
+#define E6_AUTO_FAN_PIN -1
+#define E7_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
+#define COOLER_AUTO_FAN_PIN -1
+
+#define EXTRUDER_AUTO_FAN_TEMPERATURE 50
+#define EXTRUDER_AUTO_FAN_SPEED 255   // 255 == full speed
+#define CHAMBER_AUTO_FAN_TEMPERATURE 30
+#define CHAMBER_AUTO_FAN_SPEED 255
+#define COOLER_AUTO_FAN_TEMPERATURE 18
+#define COOLER_AUTO_FAN_SPEED 255
+
+/**
+ * Hotend Cooling Fans tachometers
+ *
+ * Define one or more tachometer pins to enable fan speed
+ * monitoring, and reporting of fan speeds with M123.
+ *
+ * NOTE: Only works with fans up to 7000 RPM.
+ */
+//#define FOURWIRES_FANS      // Needed with AUTO_FAN when 4-wire PWM fans are installed
+//#define E0_FAN_TACHO_PIN -1
+//#define E0_FAN_TACHO_PULLUP
+//#define E0_FAN_TACHO_PULLDOWN
+//#define E1_FAN_TACHO_PIN -1
+//#define E1_FAN_TACHO_PULLUP
+//#define E1_FAN_TACHO_PULLDOWN
+//#define E2_FAN_TACHO_PIN -1
+//#define E2_FAN_TACHO_PULLUP
+//#define E2_FAN_TACHO_PULLDOWN
+//#define E3_FAN_TACHO_PIN -1
+//#define E3_FAN_TACHO_PULLUP
+//#define E3_FAN_TACHO_PULLDOWN
+//#define E4_FAN_TACHO_PIN -1
+//#define E4_FAN_TACHO_PULLUP
+//#define E4_FAN_TACHO_PULLDOWN
+//#define E5_FAN_TACHO_PIN -1
+//#define E5_FAN_TACHO_PULLUP
+//#define E5_FAN_TACHO_PULLDOWN
+//#define E6_FAN_TACHO_PIN -1
+//#define E6_FAN_TACHO_PULLUP
+//#define E6_FAN_TACHO_PULLDOWN
+//#define E7_FAN_TACHO_PIN -1
+//#define E7_FAN_TACHO_PULLUP
+//#define E7_FAN_TACHO_PULLDOWN
+
+/**
+ * Part-Cooling Fan Multiplexer
+ *
+ * This feature allows you to digitally multiplex the fan output.
+ * The multiplexer is automatically switched at tool-change.
+ * Set FANMUX[012]_PINs below for up to 2, 4, or 8 multiplexed fans.
+ */
+#define FANMUX0_PIN -1
+#define FANMUX1_PIN -1
+#define FANMUX2_PIN -1
+
+/**
+ * @section caselight
+ * M355 Case Light on-off / brightness
+ */
+//#define CASE_LIGHT_ENABLE
+#if ENABLED(CASE_LIGHT_ENABLE)
+  //#define CASE_LIGHT_PIN 4                  // Override the default pin if needed
+  #define INVERT_CASE_LIGHT false             // Set true if Case Light is ON when pin is LOW
+  #define CASE_LIGHT_DEFAULT_ON true          // Set default power-up state on
+  #define CASE_LIGHT_DEFAULT_BRIGHTNESS 105   // Set default power-up brightness (0-255, requires PWM pin)
+  //#define CASE_LIGHT_NO_BRIGHTNESS          // Disable brightness control. Enable for non-PWM lighting.
+  //#define CASE_LIGHT_MAX_PWM 128            // Limit PWM duty cycle (0-255)
+  //#define CASE_LIGHT_MENU                   // Add Case Light options to the LCD menu
+  #if ENABLED(NEOPIXEL_LED)
+    //#define CASE_LIGHT_USE_NEOPIXEL         // Use NeoPixel LED as case light
+  #endif
+  #if ANY(RGB_LED, RGBW_LED)
+    //#define CASE_LIGHT_USE_RGB_LED          // Use RGB / RGBW LED as case light
+  #endif
+  #if ANY(CASE_LIGHT_USE_NEOPIXEL, CASE_LIGHT_USE_RGB_LED)
+    #define CASE_LIGHT_DEFAULT_COLOR { 255, 255, 255, 255 } // { Red, Green, Blue, White }
+  #endif
+#endif
+
+// @section endstops
+
+// If you want endstops to stay on (by default) even when not homing
+// enable this option. Override at any time with M120, M121.
+//#define ENDSTOPS_ALWAYS_ON_DEFAULT
+
+// @section extras
+
+//#define Z_LATE_ENABLE // Enable Z the last moment. Needed if your Z driver overheats.
+
+// Employ an external closed loop controller. Override pins here if needed.
+//#define EXTERNAL_CLOSED_LOOP_CONTROLLER
+#if ENABLED(EXTERNAL_CLOSED_LOOP_CONTROLLER)
+  //#define CLOSED_LOOP_ENABLE_PIN        -1
+  //#define CLOSED_LOOP_MOVE_COMPLETE_PIN -1
+#endif
+
+// @section idex
+
+/**
+ * Dual X Carriage
+ *
+ * This setup has two X carriages that can move independently, each with its own hotend.
+ * The carriages can be used to print an object with two colors or materials, or in
+ * "duplication mode" it can print two identical or X-mirrored objects simultaneously.
+ * The inactive carriage is parked automatically to prevent oozing.
+ * X1 is the left carriage, X2 the right. They park and home at opposite ends of the X axis.
+ * By default the X2 stepper is assigned to the first unused E plug on the board.
+ *
+ * The following Dual X Carriage modes can be selected with M605 S<mode>:
+ *
+ *   0 : (FULL_CONTROL) The slicer has full control over both X-carriages and can achieve optimal travel
+ *       results as long as it supports dual X-carriages. (M605 S0)
+ *
+ *   1 : (AUTO_PARK) The firmware automatically parks and unparks the X-carriages on tool-change so
+ *       that additional slicer support is not required. (M605 S1)
+ *
+ *   2 : (DUPLICATION) The firmware moves the second X-carriage and extruder in synchronization with
+ *       the first X-carriage and extruder, to print 2 copies of the same object at the same time.
+ *       Set the constant X-offset and temperature differential with M605 S2 X[offs] R[deg] and
+ *       follow with M605 S2 to initiate duplicated movement.
+ *
+ *   3 : (MIRRORED) Formbot/Vivedino-inspired mirrored mode in which the second extruder duplicates
+ *       the movement of the first except the second extruder is reversed in the X axis.
+ *       Set the initial X offset and temperature differential with M605 S2 X[offs] R[deg] and
+ *       follow with M605 S3 to initiate mirrored movement.
+ */
+//#define DUAL_X_CARRIAGE
+#if ENABLED(DUAL_X_CARRIAGE)
+  #define X1_MIN_POS X_MIN_POS    // Set to X_MIN_POS
+  #define X1_MAX_POS X_BED_SIZE   // A max coordinate so the X1 carriage can't hit the parked X2 carriage
+  #define X2_MIN_POS    80        // A min coordinate so the X2 carriage can't hit the parked X1 carriage
+  #define X2_MAX_POS   353        // The max position of the X2 carriage, typically also the home position
+  #define X2_HOME_POS X2_MAX_POS  // Default X2 home position. Set to X2_MAX_POS.
+                                  // NOTE: For Dual X Carriage use M218 T1 Xn to override the X2_HOME_POS.
+                                  // This allows recalibration of endstops distance without a rebuild.
+                                  // Remember to set the second extruder's X-offset to 0 in your slicer.
+
+  // This is the default power-up mode which can be changed later using M605 S<mode>.
+  #define DEFAULT_DUAL_X_CARRIAGE_MODE DXC_AUTO_PARK_MODE
+
+  // Default x offset in duplication mode (typically set to half print bed width)
+  #define DEFAULT_DUPLICATION_X_OFFSET 100
+
+  // Default action to execute following M605 mode change commands. Typically G28X to apply new mode.
+  //#define EVENT_GCODE_IDEX_AFTER_MODECHANGE "G28X"
+#endif
+
+// @section multi stepper
+
+/**
+ * Multi-Stepper / Multi-Endstop
+ *
+ * When X2_DRIVER_TYPE is defined, this indicates that the X and X2 motors work in tandem.
+ * The following explanations for X also apply to Y and Z multi-stepper setups.
+ * Endstop offsets may be changed by 'M666 X<offset> Y<offset> Z<offset>' and stored to EEPROM.
+ *
+ * - Enable INVERT_X2_VS_X_DIR if the X2 motor requires an opposite DIR signal from X.
+ *
+ * - Enable X_DUAL_ENDSTOPS if the second motor has its own endstop, with adjustable offset.
+ *
+ *   - Extra endstops are included in the output of 'M119'.
+ *
+ *   - Set X_DUAL_ENDSTOP_ADJUSTMENT to the known error in the X2 endstop.
+ *     Applied to the X2 motor on 'G28' / 'G28 X'.
+ *     Get the offset by homing X and measuring the error.
+ *     Also set with 'M666 X<offset>' and stored to EEPROM with 'M500'.
+ *
+ *   - Define the extra endstop pins here to override defaults. No auto-assignment.
+ */
+#if HAS_X2_STEPPER && DISABLED(DUAL_X_CARRIAGE)
+  //#define INVERT_X2_VS_X_DIR        // X2 direction signal is the opposite of X
+  //#define X_DUAL_ENDSTOPS           // X2 has its own endstop
+  #if ENABLED(X_DUAL_ENDSTOPS)
+    //#define X2_STOP_PIN X_MAX_PIN   // X2 endstop pin override
+    #define X2_ENDSTOP_ADJUSTMENT  0  // X2 offset relative to X endstop
+  #endif
+#endif
+
+#if HAS_Y2_STEPPER
+  //#define INVERT_Y2_VS_Y_DIR        // Y2 direction signal is the opposite of Y
+  //#define Y_DUAL_ENDSTOPS           // Y2 has its own endstop
+  #if ENABLED(Y_DUAL_ENDSTOPS)
+    //#define Y2_STOP_PIN Y_MAX_PIN   // Y2 endstop pin override
+    #define Y2_ENDSTOP_ADJUSTMENT  0  // Y2 offset relative to Y endstop
+  #endif
+#endif
+
+//
+// Multi-Z steppers
+//
+#ifdef Z2_DRIVER_TYPE
+  //#define INVERT_Z2_VS_Z_DIR        // Z2 direction signal is the opposite of Z
+
+  //#define Z_MULTI_ENDSTOPS          // Other Z axes have their own endstops
+  #if ENABLED(Z_MULTI_ENDSTOPS)
+    //#define Z2_STOP_PIN X_MAX_PIN   // Z2 endstop pin override
+    #define Z2_ENDSTOP_ADJUSTMENT 0   // Z2 offset relative to Z endstop
+  #endif
+  #ifdef Z3_DRIVER_TYPE
+    //#define INVERT_Z3_VS_Z_DIR      // Z3 direction signal is the opposite of Z
+    #if ENABLED(Z_MULTI_ENDSTOPS)
+      //#define Z3_STOP_PIN Y_MAX_PIN // Z3 endstop pin override
+      #define Z3_ENDSTOP_ADJUSTMENT 0 // Z3 offset relative to Z endstop
+    #endif
+  #endif
+  #ifdef Z4_DRIVER_TYPE
+    //#define INVERT_Z4_VS_Z_DIR      // Z4 direction signal is the opposite of Z
+    #if ENABLED(Z_MULTI_ENDSTOPS)
+      //#define Z4_STOP_PIN Z_MAX_PIN // Z4 endstop pin override
+      #define Z4_ENDSTOP_ADJUSTMENT 0 // Z4 offset relative to Z endstop
+    #endif
+  #endif
+#endif
+
+// Drive the E axis with two synchronized steppers
+//#define E_DUAL_STEPPER_DRIVERS
+#if ENABLED(E_DUAL_STEPPER_DRIVERS)
+  //#define INVERT_E1_VS_E0_DIR       // E direction signals are opposites
+#endif
+
+// @section extruder
+
+// Activate a solenoid on the active extruder with M380. Disable all with M381.
+// Define SOL0_PIN, SOL1_PIN, etc., for each extruder that has a solenoid.
+//#define EXT_SOLENOID
+
+// @section homing
+
+/**
+ * Homing Procedure
+ * Homing (G28) does an indefinite move towards the endstops to establish
+ * the position of the toolhead relative to the workspace.
+ */
+
+#define SENSORLESS_BACKOFF_MM  { 2, 2, 0 }    // (linear=mm, rotational=°) Backoff from endstops before sensorless homing
+
+#define HOMING_BUMP_MM      { 2, 2, 2 }       // (linear=mm, rotational=°) Backoff from endstops after first bump
+#define HOMING_BUMP_DIVISOR { 2, 2, 4 }       // Re-Bump Speed Divisor (Divides the Homing Feedrate)
+
+//#define HOMING_BACKOFF_POST_MM { 2, 2, 2 }  // (linear=mm, rotational=°) Backoff from endstops after homing
+//#define XY_COUNTERPART_BACKOFF_MM 0         // (mm) Backoff X after homing Y, and vice-versa
+
+//#define QUICK_HOME                          // If G28 contains XY do a diagonal move first
+//#define HOME_Y_BEFORE_X                     // If G28 contains XY home Y before X
+//#define HOME_Z_FIRST                        // Home Z first. Requires a real endstop (not a probe).
+//#define CODEPENDENT_XY_HOMING               // If X/Y can't home without homing Y/X first
+
+// @section bltouch
+
+#if ENABLED(BLTOUCH)
+  /**
+   * Either: Use the defaults (recommended) or: For special purposes, use the following DEFINES
+   * Do not activate settings that the probe might not understand. Clones might misunderstand
+   * advanced commands.
+   *
+   * Note: If the probe is not deploying, do a "Reset" and "Self-Test" and then check the
+   *       wiring of the BROWN, RED and ORANGE wires.
+   *
+   * Note: If the trigger signal of your probe is not being recognized, it has been very often
+   *       because the BLACK and WHITE wires needed to be swapped. They are not "interchangeable"
+   *       like they would be with a real switch. So please check the wiring first.
+   *
+   * Settings for all BLTouch and clone probes:
+   */
+
+  // Safety: The probe needs time to recognize the command.
+  //         Minimum command delay (ms). Enable and increase if needed.
+  //#define BLTOUCH_DELAY 500
+
+  /**
+   * Settings for BLTOUCH Classic 1.2, 1.3 or BLTouch Smart 1.0, 2.0, 2.2, 3.0, 3.1, and most clones:
+   */
+
+  // Feature: Switch into SW mode after a deploy. It makes the output pulse longer. Can be useful
+  //          in special cases, like noisy or filtered input configurations.
+  //#define BLTOUCH_FORCE_SW_MODE
+
+  /**
+   * Settings for BLTouch Smart 3.0 and 3.1
+   * Summary:
+   *   - Voltage modes: 5V and OD (open drain - "logic voltage free") output modes
+   *   - High-Speed mode
+   *   - Disable LCD voltage options
+   */
+
+  /**
+   * Danger: Don't activate 5V mode unless attached to a 5V-tolerant controller!
+   * V3.0 or 3.1: Set default mode to 5V mode at Marlin startup.
+   * If disabled, OD mode is the hard-coded default on 3.0
+   * On startup, Marlin will compare its EEPROM to this value. If the selected mode
+   * differs, a mode set EEPROM write will be completed at initialization.
+   * Use the option below to force an EEPROM write to a V3.1 probe regardless.
+   */
+  //#define BLTOUCH_SET_5V_MODE
+
+  // Safety: Enable voltage mode settings in the LCD menu.
+  //#define BLTOUCH_LCD_VOLTAGE_MENU
+
+  /**
+   * Safety: Activate if connecting a probe with an unknown voltage mode.
+   * V3.0: Set a probe into mode selected above at Marlin startup. Required for 5V mode on 3.0
+   * V3.1: Force a probe with unknown mode into selected mode at Marlin startup ( = Probe EEPROM write )
+   * To preserve the life of the probe, use this once then turn it off and re-flash.
+   */
+  //#define BLTOUCH_FORCE_MODE_SET
+
+  /**
+   * Enable "HIGH SPEED" option for probing.
+   * Danger: Disable if your probe sometimes fails. Only suitable for stable well-adjusted systems.
+   * This feature was designed for Deltabots with very fast Z moves; however, higher speed Cartesians
+   * might be able to use it. If the machine can't raise Z fast enough the BLTouch may go into ALARM.
+   *
+   * Set the default state here, change with 'M401 S' or UI, use M500 to save, M502 to reset.
+   */
+  //#define BLTOUCH_HS_MODE true
+
+  #ifdef BLTOUCH_HS_MODE
+    // The probe Z offset (M851 Z) is the height at which the probe triggers.
+    // This must be large enough to keep the probe pin off the bed and prevent
+    // it from snagging on the bed clips.
+    #define BLTOUCH_HS_EXTRA_CLEARANCE    7 // Extra Z Clearance
+  #endif
+
+#endif // BLTOUCH
+
+// @section calibration
+
+/**
+ * Z Steppers Auto-Alignment
+ * Add the G34 command to align multiple Z steppers using a bed probe.
+ */
+//#define Z_STEPPER_AUTO_ALIGN
+#if ENABLED(Z_STEPPER_AUTO_ALIGN)
+  /**
+   * Define probe X and Y positions for Z1, Z2 [, Z3 [, Z4]]
+   * These positions are machine-relative and do not shift with the M206 home offset!
+   * If not defined, probe limits will be used.
+   * Override with 'M422 S<index> X<pos> Y<pos>'.
+   */
+  //#define Z_STEPPER_ALIGN_XY { {  10, 190 }, { 100,  10 }, { 190, 190 } }
+
+  /**
+   * Orientation for the automatically-calculated probe positions.
+   * Override Z stepper align points with 'M422 S<index> X<pos> Y<pos>'
+   *
+   * 2 Steppers:  (0)     (1)
+   *               |       |   2   |
+   *               | 1   2 |       |
+   *               |       |   1   |
+   *
+   * 3 Steppers:  (0)     (1)     (2)     (3)
+   *               |   3   | 1     | 2   1 |     2 |
+   *               |       |     3 |       | 3     |
+   *               | 1   2 | 2     |   3   |     1 |
+   *
+   * 4 Steppers:  (0)     (1)     (2)     (3)
+   *               | 4   3 | 1   4 | 2   1 | 3   2 |
+   *               |       |       |       |       |
+   *               | 1   2 | 2   3 | 3   4 | 4   1 |
+   */
+  #ifndef Z_STEPPER_ALIGN_XY
+    //#define Z_STEPPERS_ORIENTATION 0
+  #endif
+
+  /**
+   * Z Stepper positions for more rapid convergence in bed alignment.
+   * Requires 3 or 4 Z steppers.
+   *
+   * Define Stepper XY positions for Z1, Z2, Z3... corresponding to the screw
+   * positions in the bed carriage, with one position per Z stepper in stepper
+   * driver order.
+   */
+  //#define Z_STEPPER_ALIGN_STEPPER_XY { { 210.7, 102.5 }, { 152.6, 220.0 }, { 94.5, 102.5 } }
+
+  #ifndef Z_STEPPER_ALIGN_STEPPER_XY
+    // Amplification factor. Used to scale the correction step up or down in case
+    // the stepper (spindle) position is farther out than the test point.
+    #define Z_STEPPER_ALIGN_AMP 1.0       // Use a value > 1.0 NOTE: This may cause instability!
+  #endif
+
+  // On a 300mm bed a 5% grade would give a misalignment of ~1.5cm
+  #define G34_MAX_GRADE              5    // (%) Maximum incline that G34 will handle
+  #define Z_STEPPER_ALIGN_ITERATIONS 5    // Number of iterations to apply during alignment
+  #define Z_STEPPER_ALIGN_ACC        0.02 // Stop iterating early if the accuracy is better than this
+  #define RESTORE_LEVELING_AFTER_G34      // Restore leveling after G34 is done?
+  // After G34, re-home Z (G28 Z) or just calculate it from the last probe heights?
+  // Re-homing might be more precise in reproducing the actual 'G28 Z' homing height, especially on an uneven bed.
+  #define HOME_AFTER_G34
+#endif
+
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
+//#define ASSISTED_TRAMMING
+#if ENABLED(ASSISTED_TRAMMING)
+
+  // Define from 3 to 9 points to probe.
+  #define TRAMMING_POINT_XY { {  20, 20 }, { 180,  20 }, { 180, 180 }, { 20, 180 } }
+
+  // Define position names for probe points.
+  #define TRAMMING_POINT_NAME_1 "Front-Left"
+  #define TRAMMING_POINT_NAME_2 "Front-Right"
+  #define TRAMMING_POINT_NAME_3 "Back-Right"
+  #define TRAMMING_POINT_NAME_4 "Back-Left"
+
+  #define RESTORE_LEVELING_AFTER_G35    // Enable to restore leveling setup after operation
+  //#define REPORT_TRAMMING_MM          // Report Z deviation (mm) for each point relative to the first
+
+  //#define ASSISTED_TRAMMING_WIZARD    // Add a Tramming Wizard to the LCD menu
+
+  //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
+
+  /**
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
+   */
+  #define TRAMMING_SCREW_THREAD M3_CW
+
+#endif
+
+// @section motion control
+
+/**
+ * Fixed-time-based Motion Control -- BETA FEATURE
+ * Enable/disable and set parameters with G-code M493.
+ * See ft_types.h for named values used by FTM options.
+ */
+//#define FT_MOTION
+#if ENABLED(FT_MOTION)
+  //#define FTM_IS_DEFAULT_MOTION                 // Use FT Motion as the factory default?
+  #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
+  #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
+  #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
+  #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
+  #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
+  #define FTM_SHAPING_ZETA_Y            0.1f      // Zeta used by input shapers for Y axis
+
+  #define FTM_SHAPING_V_TOL_X           0.05f     // Vibration tolerance used by EI input shapers for X axis
+  #define FTM_SHAPING_V_TOL_Y           0.05f     // Vibration tolerance used by EI input shapers for Y axis
+
+  //#define FT_MOTION_MENU                        // Provide a MarlinUI menu to set M493 parameters
+
+  /**
+   * Advanced configuration
+   */
+  #define FTM_UNIFIED_BWS                         // DON'T DISABLE unless you use Ulendo FBS (not implemented)
+  #if ENABLED(FTM_UNIFIED_BWS)
+    #define FTM_BW_SIZE               100         // Unified Window and Batch size with a ratio of 2
+  #else
+    #define FTM_WINDOW_SIZE           200         // Custom Window size for trajectory generation needed by Ulendo FBS
+    #define FTM_BATCH_SIZE            100         // Custom Batch size for trajectory generation needed by Ulendo FBS
+  #endif
+
+  #define FTM_FS                     1000         // (Hz) Frequency for trajectory generation. (Reciprocal of FTM_TS)
+  #define FTM_TS                        0.001f    // (s) Time step for trajectory generation. (Reciprocal of FTM_FS)
+
+  #if DISABLED(COREXY)
+    #define FTM_STEPPER_FS          20000         // (Hz) Frequency for stepper I/O update
+
+    // Use this to adjust the time required to consume the command buffer.
+    // Try increasing this value if stepper motion is choppy.
+    #define FTM_STEPPERCMD_BUFF_SIZE 3000         // Size of the stepper command buffers
+
+  #else
+    // CoreXY motion needs a larger buffer size. These values are based on our testing.
+    #define FTM_STEPPER_FS          30000
+    #define FTM_STEPPERCMD_BUFF_SIZE 6000
+  #endif
+
+  #define FTM_STEPS_PER_UNIT_TIME (FTM_STEPPER_FS / FTM_FS)       // Interpolated stepper commands per unit time
+  #define FTM_CTS_COMPARE_VAL (FTM_STEPS_PER_UNIT_TIME / 2)       // Comparison value used in interpolation algorithm
+  #define FTM_MIN_TICKS ((STEPPER_TIMER_RATE) / (FTM_STEPPER_FS)) // Minimum stepper ticks between steps
+
+  #define FTM_MIN_SHAPE_FREQ           10         // Minimum shaping frequency
+  #define FTM_RATIO (FTM_FS / FTM_MIN_SHAPE_FREQ) // Factor for use in FTM_ZMAX. DON'T CHANGE.
+  #define FTM_ZMAX (FTM_RATIO * 2)                // Maximum delays for shaping functions (even numbers only!)
+                                                  // Calculate as:
+                                                  //   ZV       : FTM_RATIO / 2
+                                                  //   ZVD, MZV : FTM_RATIO
+                                                  //   2HEI     : FTM_RATIO * 3 / 2
+                                                  //   3HEI     : FTM_RATIO * 2
+#endif
+
+/**
+ * Input Shaping
+ *
+ * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
+ *
+ * This option uses a lot of SRAM for the step buffer. The buffer size is
+ * calculated automatically from SHAPING_FREQ_[XYZ], DEFAULT_AXIS_STEPS_PER_UNIT,
+ * DEFAULT_MAX_FEEDRATE and ADAPTIVE_STEP_SMOOTHING. The default calculation can
+ * be overridden by setting SHAPING_MIN_FREQ and/or SHAPING_MAX_FEEDRATE.
+ * The higher the frequency and the lower the feedrate, the smaller the buffer.
+ * If the buffer is too small at runtime, input shaping will have reduced
+ * effectiveness during high speed movements.
+ *
+ * Tune with M593 D<factor> F<frequency>
+ */
+#define INPUT_SHAPING_X
+#define INPUT_SHAPING_Y
+//#define INPUT_SHAPING_Z
+#if ANY(INPUT_SHAPING_X, INPUT_SHAPING_Y, INPUT_SHAPING_Z)
+  #if ENABLED(INPUT_SHAPING_X)
+    #define SHAPING_FREQ_X  55.0        // (Hz) The default dominant resonant frequency on the X axis.
+    #define SHAPING_ZETA_X   0.15       // Damping ratio of the X axis (range: 0.0 = no damping to 1.0 = critical damping).
+  #endif
+  #if ENABLED(INPUT_SHAPING_Y)
+    #define SHAPING_FREQ_Y  45.0        // (Hz) The default dominant resonant frequency on the Y axis.
+    #define SHAPING_ZETA_Y   0.15       // Damping ratio of the Y axis (range: 0.0 = no damping to 1.0 = critical damping).
+  #endif
+  #if ENABLED(INPUT_SHAPING_Z)
+    #define SHAPING_FREQ_Z  40.0        // (Hz) The default dominant resonant frequency on the Z axis.
+    #define SHAPING_ZETA_Z   0.15       // Damping ratio of the Z axis (range: 0.0 = no damping to 1.0 = critical damping).
+  #endif
+  //#define SHAPING_MIN_FREQ  20.0      // (Hz) By default the minimum of the shaping frequencies. Override to affect SRAM usage.
+  //#define SHAPING_MAX_STEPRATE 10000  // By default the maximum total step rate of the shaped axes. Override to affect SRAM usage.
+  #define SHAPING_MENU                  // Add a menu to the LCD to set shaping parameters.
+#endif
+
+// @section motion
+
+#define AXIS_RELATIVE_MODES { false, false, false, false }
+
+// Add a Duplicate option for well-separated conjoined nozzles
+//#define MULTI_NOZZLE_DUPLICATION
+
+// By default stepper drivers require an active-HIGH signal but some high-power drivers require an active-LOW signal to step.
+#define STEP_STATE_X HIGH
+#define STEP_STATE_Y HIGH
+#define STEP_STATE_Z HIGH
+#define STEP_STATE_I HIGH
+#define STEP_STATE_J HIGH
+#define STEP_STATE_K HIGH
+#define STEP_STATE_U HIGH
+#define STEP_STATE_V HIGH
+#define STEP_STATE_W HIGH
+#define STEP_STATE_E HIGH
+
+/**
+ * Idle Stepper Shutdown
+ * Enable DISABLE_IDLE_* to shut down axis steppers after an idle period.
+ * The default timeout duration can be overridden with M18 and M84. Set to 0 for No Timeout.
+ */
+#define DEFAULT_STEPPER_TIMEOUT_SEC 120
+#define DISABLE_IDLE_X
+#define DISABLE_IDLE_Y
+//#define DISABLE_IDLE_Z  // Disable if the nozzle could fall onto your printed part!
+//#define DISABLE_IDLE_I
+//#define DISABLE_IDLE_J
+//#define DISABLE_IDLE_K
+//#define DISABLE_IDLE_U
+//#define DISABLE_IDLE_V
+//#define DISABLE_IDLE_W
+#define DISABLE_IDLE_E    // Shut down all idle extruders
+
+// Default Minimum Feedrates for printing and travel moves
+#define DEFAULT_MINIMUMFEEDRATE             0.0     // (mm/s) Minimum feedrate. Set with M205 S.
+#define DEFAULT_MINTRAVELFEEDRATE           0.0     // (mm/s) Minimum travel feedrate. Set with M205 T.
+#if HAS_ROTATIONAL_AXES
+  #define DEFAULT_ANGULAR_MINIMUMFEEDRATE   0.0     // (°/s) Minimum feedrate for rotational-only moves. Set with M205 P.
+  #define DEFAULT_ANGULAR_MINTRAVELFEEDRATE 0.0     // (°/s) Minimum travel feedrate for rotational-only moves. Set with M205 Q.
+#endif
+
+// Minimum time that a segment needs to take as the buffer gets emptied
+#define DEFAULT_MINSEGMENTTIME        20000   // (µs) Set with M205 B.
+
+// Slow down the machine if the lookahead buffer is (by default) half full.
+// Increase the slowdown divisor for larger buffer sizes.
+#define SLOWDOWN
+#if ENABLED(SLOWDOWN)
+  #define SLOWDOWN_DIVISOR 2
+#endif
+
+/**
+ * XY Frequency limit
+ * Reduce resonance by limiting the frequency of small zigzag infill moves.
+ * See https://hydraraptor.blogspot.com/2010/12/frequency-limit.html
+ * Use M201 F<freq> S<min%> to change limits at runtime.
+ */
+//#define XY_FREQUENCY_LIMIT      10 // (Hz) Maximum frequency of small zigzag infill moves. Set with M201 F<hertz>.
+#ifdef XY_FREQUENCY_LIMIT
+  #define XY_FREQUENCY_MIN_PERCENT 5 // (%) Minimum FR percentage to apply. Set with M201 S<min%>.
+#endif
+
+//
+// Backlash Compensation
+// Adds extra movement to axes on direction-changes to account for backlash.
+//
+//#define BACKLASH_COMPENSATION
+#if ENABLED(BACKLASH_COMPENSATION)
+  // Define values for backlash distance and correction.
+  // If BACKLASH_GCODE is enabled these values are the defaults.
+  #define BACKLASH_DISTANCE_MM { 0, 0, 0 } // (linear=mm, rotational=°) One value for each linear axis
+  #define BACKLASH_CORRECTION    0.0       // 0.0 = no correction; 1.0 = full correction
+
+  // Add steps for motor direction changes on CORE kinematics
+  //#define CORE_BACKLASH
+
+  // Set BACKLASH_SMOOTHING_MM to spread backlash correction over multiple segments
+  // to reduce print artifacts. (Enabling this is costly in memory and computation!)
+  //#define BACKLASH_SMOOTHING_MM 3 // (mm)
+
+  // Add runtime configuration and tuning of backlash values (M425)
+  //#define BACKLASH_GCODE
+
+  #if ENABLED(BACKLASH_GCODE)
+    // Measure the Z backlash when probing (G29) and set with "M425 Z"
+    #define MEASURE_BACKLASH_WHEN_PROBING
+
+    #if ENABLED(MEASURE_BACKLASH_WHEN_PROBING)
+      // When measuring, the probe will move up to BACKLASH_MEASUREMENT_LIMIT
+      // mm away from point of contact in BACKLASH_MEASUREMENT_RESOLUTION
+      // increments while checking for the contact to be broken.
+      #define BACKLASH_MEASUREMENT_LIMIT       0.5   // (mm)
+      #define BACKLASH_MEASUREMENT_RESOLUTION  0.005 // (mm)
+      #define BACKLASH_MEASUREMENT_FEEDRATE    Z_PROBE_FEEDRATE_SLOW // (mm/min)
+    #endif
+  #endif
+#endif
+
+/**
+ * Automatic backlash, position, and hotend offset calibration
+ *
+ * Enable G425 to run automatic calibration using an electrically-
+ * conductive cube, bolt, or washer mounted on the bed.
+ *
+ * G425 uses the probe to touch the top and sides of the calibration object
+ * on the bed and measures and/or correct positional offsets, axis backlash
+ * and hotend offsets.
+ *
+ * Note: HOTEND_OFFSET and CALIBRATION_OBJECT_CENTER must be set to within
+ *       ±5mm of true values for G425 to succeed.
+ */
+//#define CALIBRATION_GCODE
+#if ENABLED(CALIBRATION_GCODE)
+
+  //#define CALIBRATION_SCRIPT_PRE  "M117 Starting Auto-Calibration\nT0\nG28\nG12\nM117 Calibrating..."
+  //#define CALIBRATION_SCRIPT_POST "M500\nM117 Calibration data saved"
+
+  #define CALIBRATION_FEEDRATE_SLOW             60    // mm/min
+  #define CALIBRATION_FEEDRATE_FAST           1200    // mm/min
+  #define CALIBRATION_FEEDRATE_TRAVEL         3000    // mm/min
+
+  // The following parameters refer to the conical section of the nozzle tip.
+  #define CALIBRATION_NOZZLE_TIP_HEIGHT          1.0  // mm
+  #define CALIBRATION_NOZZLE_OUTER_DIAMETER      2.0  // mm
+
+  // Uncomment to enable reporting (required for "G425 V", but consumes flash).
+  //#define CALIBRATION_REPORTING
+
+  // The true location and dimension the cube/bolt/washer on the bed.
+  #define CALIBRATION_OBJECT_CENTER     { 264.0, -22.0,  -2.0 } // mm
+  #define CALIBRATION_OBJECT_DIMENSIONS {  10.0,  10.0,  10.0 } // mm
+
+  // Comment out any sides which are unreachable by the probe. For best
+  // auto-calibration results, all sides must be reachable.
+  #define CALIBRATION_MEASURE_RIGHT
+  #define CALIBRATION_MEASURE_FRONT
+  #define CALIBRATION_MEASURE_LEFT
+  #define CALIBRATION_MEASURE_BACK
+
+  //#define CALIBRATION_MEASURE_IMIN
+  //#define CALIBRATION_MEASURE_IMAX
+  //#define CALIBRATION_MEASURE_JMIN
+  //#define CALIBRATION_MEASURE_JMAX
+  //#define CALIBRATION_MEASURE_KMIN
+  //#define CALIBRATION_MEASURE_KMAX
+  //#define CALIBRATION_MEASURE_UMIN
+  //#define CALIBRATION_MEASURE_UMAX
+  //#define CALIBRATION_MEASURE_VMIN
+  //#define CALIBRATION_MEASURE_VMAX
+  //#define CALIBRATION_MEASURE_WMIN
+  //#define CALIBRATION_MEASURE_WMAX
+
+  // Probing at the exact top center only works if the center is flat. If
+  // probing on a screw head or hollow washer, probe near the edges.
+  //#define CALIBRATION_MEASURE_AT_TOP_EDGES
+
+  // Define the pin to read during calibration
+  #ifndef CALIBRATION_PIN
+    //#define CALIBRATION_PIN -1            // Define here to override the default pin
+    #define CALIBRATION_PIN_INVERTING false // Set to true to invert the custom pin
+    //#define CALIBRATION_PIN_PULLDOWN
+    #define CALIBRATION_PIN_PULLUP
+  #endif
+#endif
+
+/**
+ * Multi-stepping sends steps in bursts to reduce MCU usage for high step-rates.
+ * This allows higher feedrates than the MCU could otherwise support.
+ */
+#define MULTISTEPPING_LIMIT   16  //: [1, 2, 4, 8, 16, 32, 64, 128]
+
+/**
+ * Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies
+ * below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible
+ * vibration and surface artifacts. The algorithm adapts to provide the best possible step smoothing at the
+ * lowest stepping frequencies.
+ */
+//#define ADAPTIVE_STEP_SMOOTHING
+
+/**
+ * Custom Microstepping
+ * Override as-needed for your setup. Up to 3 MS pins are supported.
+ */
+//#define MICROSTEP1 LOW,LOW,LOW
+//#define MICROSTEP2 HIGH,LOW,LOW
+//#define MICROSTEP4 LOW,HIGH,LOW
+//#define MICROSTEP8 HIGH,HIGH,LOW
+//#define MICROSTEP16 LOW,LOW,HIGH
+//#define MICROSTEP32 HIGH,LOW,HIGH
+
+// Microstep settings (Requires a board with pins named X_MS1, X_MS2, etc.)
+#define MICROSTEP_MODES { 16, 16, 16, 16, 16, 16 } // [1,2,4,8,16]
+
+/**
+ *  @section  stepper motor current
+ *
+ *  Some boards have a means of setting the stepper motor current via firmware.
+ *
+ *  The power on motor currents are set by:
+ *    PWM_MOTOR_CURRENT - used by MINIRAMBO & ULTIMAIN_2
+ *                         known compatible chips: A4982
+ *    DIGIPOT_MOTOR_CURRENT - used by BQ_ZUM_MEGA_3D, RAMBO & SCOOVO_X9H
+ *                         known compatible chips: AD5206
+ *    DAC_MOTOR_CURRENT_DEFAULT - used by PRINTRBOARD_REVF & RIGIDBOARD_V2
+ *                         known compatible chips: MCP4728
+ *    DIGIPOT_I2C_MOTOR_CURRENTS - used by 5DPRINT, AZTEEG_X3_PRO, AZTEEG_X5_MINI_WIFI, MIGHTYBOARD_REVE
+ *                         known compatible chips: MCP4451, MCP4018
+ *
+ *  Motor currents can also be set by M907 - M910 and by the LCD.
+ *    M907 - applies to all.
+ *    M908 - BQ_ZUM_MEGA_3D, RAMBO, PRINTRBOARD_REVF, RIGIDBOARD_V2 & SCOOVO_X9H
+ *    M909, M910 & LCD - only PRINTRBOARD_REVF & RIGIDBOARD_V2
+ */
+//#define PWM_MOTOR_CURRENT { 1300, 1300, 1250 }          // Values in milliamps
+//#define DIGIPOT_MOTOR_CURRENT { 135,135,135,135,135 }   // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
+//#define DAC_MOTOR_CURRENT_DEFAULT { 70, 80, 90, 80 }    // Default drive percent - X, Y, Z, E axis
+
+/**
+ * I2C-based DIGIPOTs (e.g., Azteeg X3 Pro)
+ */
+//#define DIGIPOT_MCP4018             // Requires https://github.com/felias-fogg/SlowSoftI2CMaster
+//#define DIGIPOT_MCP4451
+#if ANY(DIGIPOT_MCP4018, DIGIPOT_MCP4451)
+  #define DIGIPOT_I2C_NUM_CHANNELS 8  // 5DPRINT:4   AZTEEG_X3_PRO:8   MKS_SBASE:5   MIGHTYBOARD_REVE:5
+
+  // Actual motor currents in Amps. The number of entries must match DIGIPOT_I2C_NUM_CHANNELS.
+  // These correspond to the physical drivers, so be mindful if the order is changed.
+  #define DIGIPOT_I2C_MOTOR_CURRENTS { 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0 } // AZTEEG_X3_PRO
+
+  //#define DIGIPOT_USE_RAW_VALUES    // Use DIGIPOT_MOTOR_CURRENT raw wiper values (instead of A4988 motor currents)
+
+  /**
+   * Common slave addresses:
+   *
+   *                        A   (A shifted)   B   (B shifted)  IC
+   * Smoothie              0x2C (0x58)       0x2D (0x5A)       MCP4451
+   * AZTEEG_X3_PRO         0x2C (0x58)       0x2E (0x5C)       MCP4451
+   * AZTEEG_X5_MINI        0x2C (0x58)       0x2E (0x5C)       MCP4451
+   * AZTEEG_X5_MINI_WIFI         0x58              0x5C        MCP4451
+   * MIGHTYBOARD_REVE      0x2F (0x5E)                         MCP4018
+   */
+  //#define DIGIPOT_I2C_ADDRESS_A 0x2C  // Unshifted slave address for first DIGIPOT
+  //#define DIGIPOT_I2C_ADDRESS_B 0x2D  // Unshifted slave address for second DIGIPOT
+#endif
+
+//===========================================================================
+//=============================Additional Features===========================
+//===========================================================================
+
+// @section lcd
+
+#if HAS_MANUAL_MOVE_MENU
+  #define MANUAL_FEEDRATE { 50*60, 50*60, 4*60, 2*60 } // (mm/min) Feedrates for manual moves along X, Y, Z, E from panel
+  #define FINE_MANUAL_MOVE 0.025    // (mm) Smallest manual move (< 0.1mm) applying to Z on most machines
+  #if IS_ULTIPANEL
+    #define MANUAL_E_MOVES_RELATIVE // Display extruder move distance rather than "position"
+    #define ULTIPANEL_FEEDMULTIPLY  // Encoder sets the feedrate multiplier on the Status Screen
+    //#define ULTIPANEL_FLOWPERCENT // Encoder sets the flow percentage on the Status Screen
+  #endif
+#endif
+
+// Change values more rapidly when the encoder is rotated faster
+#define ENCODER_RATE_MULTIPLIER
+#if ENABLED(ENCODER_RATE_MULTIPLIER)
+  #define ENCODER_10X_STEPS_PER_SEC   30  // (steps/s) Encoder rate for 10x speed
+  #define ENCODER_100X_STEPS_PER_SEC  80  // (steps/s) Encoder rate for 100x speed
+#endif
+
+// Play a beep when the feedrate is changed from the Status Screen
+//#define BEEP_ON_FEEDRATE_CHANGE
+#if ENABLED(BEEP_ON_FEEDRATE_CHANGE)
+  #define FEEDRATE_CHANGE_BEEP_DURATION   10
+  #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
+#endif
+
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
+#if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
+  //#define PROBE_OFFSET_WIZARD
+  #if ENABLED(PROBE_OFFSET_WIZARD)
+    /**
+     * Enable to init the Probe Z-Offset when starting the Wizard.
+     * Use a height slightly above the estimated nozzle-to-probe Z offset.
+     * For example, with an offset of -5, consider a starting height of -4.
+     */
+    //#define PROBE_OFFSET_WIZARD_START_Z -4.0
+
+    // Set a convenient position to do the calibration (probing point and nozzle/bed-distance)
+    //#define PROBE_OFFSET_WIZARD_XY_POS { X_CENTER, Y_CENTER }
+  #endif
+#endif
+
+#if HAS_MARLINUI_MENU
+
+  #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
+    // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
+    //#define X_AXIS_TWIST_COMPENSATION
+    #if ENABLED(X_AXIS_TWIST_COMPENSATION)
+      /**
+       * Enable to init the Probe Z-Offset when starting the Wizard.
+       * Use a height slightly above the estimated nozzle-to-probe Z offset.
+       * For example, with an offset of -5, consider a starting height of -4.
+       */
+      #define XATC_START_Z 0.0
+      #define XATC_MAX_POINTS 3             // Number of points to probe in the wizard
+      #define XATC_Y_POSITION Y_CENTER      // (mm) Y position to probe
+      #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
+    #endif
+
+  #endif
+
+  // Include a page of printer information in the LCD Main Menu
+  #define LCD_INFO_MENU
+  #if ENABLED(LCD_INFO_MENU)
+    //#define LCD_PRINTER_INFO_IS_BOOTSCREEN // Show bootscreen(s) instead of Printer Info pages
+  #endif
+
+  /**
+   * MarlinUI "Move Axis" menu distances. Comma-separated list.
+   * Values are displayed as-defined, so always use plain numbers here.
+   * Axis moves <= 1/2 the axis length and Extruder moves <= EXTRUDE_MAXLENGTH
+   * will be shown in the move submenus.
+   */
+
+  #define MANUAL_MOVE_DISTANCE_MM                    10, 1.0, 0.1  // (mm)
+  //#define MANUAL_MOVE_DISTANCE_MM         100, 50, 10, 1.0, 0.1  // (mm)
+  //#define MANUAL_MOVE_DISTANCE_MM    500, 100, 50, 10, 1.0, 0.1  // (mm)
+
+  // Manual move distances for INCH_MODE_SUPPORT
+  #define MANUAL_MOVE_DISTANCE_IN                          0.100, 0.010, 0.001  // (in)
+  //#define MANUAL_MOVE_DISTANCE_IN          1.000, 0.500, 0.100, 0.010, 0.001  // (in)
+  //#define MANUAL_MOVE_DISTANCE_IN   5.000, 1.000, 0.500, 0.100, 0.010, 0.001  // (in)
+
+  // Manual move distances for rotational axes
+  #define MANUAL_MOVE_DISTANCE_DEG             90, 45, 22.5, 5, 1  // (°)
+
+  // BACK menu items keep the highlight at the top
+  #define TURBO_BACK_MENU_ITEM
+
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
+  // Insert a menu for preheating at the top level to allow for quick access
+  //#define PREHEAT_SHORTCUT_MENU_ITEM
+
+  // Add Configuration > Debug Menu > Endstop Test for endstop/probe/runout testing
+  //#define LCD_ENDSTOP_TEST
+
+#endif // HAS_MARLINUI_MENU
+
+#if HAS_DISPLAY
+  /**
+   * *** VENDORS PLEASE READ ***
+   *
+   * Marlin allows you to add a custom boot image for Graphical LCDs.
+   * With this option Marlin will first show your custom screen followed
+   * by the standard Marlin logo with version number and web URL.
+   *
+   * We encourage you to take advantage of this new feature and we also
+   * respectfully request that you retain the unmodified Marlin boot screen.
+   */
+  #define SHOW_BOOTSCREEN                 // Show the Marlin bootscreen on startup. ** ENABLE FOR PRODUCTION **
+  #if ENABLED(SHOW_BOOTSCREEN)
+    #define BOOTSCREEN_TIMEOUT 3000       // (ms) Total Duration to display the boot screen(s)
+    #if ANY(HAS_MARLINUI_U8GLIB, TFT_COLOR_UI)
+      #define BOOT_MARLIN_LOGO_SMALL      // Show a smaller Marlin logo on the Boot Screen (saving lots of flash)
+    #endif
+    #if HAS_MARLINUI_U8GLIB
+      //#define BOOT_MARLIN_LOGO_ANIMATED // Animated Marlin logo. Costs ~3260 (or ~940) bytes of flash.
+    #endif
+    #if ANY(HAS_MARLINUI_U8GLIB, TOUCH_UI_FTDI_EVE, HAS_MARLINUI_HD44780)
+      #define SHOW_CUSTOM_BOOTSCREEN      // Show the bitmap in Marlin/_Bootscreen.h on startup.
+    #endif
+  #endif
+
+  #if HAS_MARLINUI_U8GLIB
+    #define CUSTOM_STATUS_SCREEN_IMAGE    // Show the bitmap in Marlin/_Statusscreen.h on the status screen.
+  #endif
+
+  #define SOUND_MENU_ITEM     // Add a mute option to the LCD menu
+  #define SOUND_ON_DEFAULT    // Buzzer/speaker default enabled state
+
+  #if HAS_WIRED_LCD
+    //#define DOUBLE_LCD_FRAMERATE        // Not recommended for slow boards.
+  #endif
+
+  // The timeout to return to the status screen from sub-menus
+  #define LCD_TIMEOUT_TO_STATUS 15000     // (ms)
+
+  // Scroll a longer status message into view
+  //#define STATUS_MESSAGE_SCROLLING
+
+  // Apply a timeout to low-priority status messages
+  //#define STATUS_MESSAGE_TIMEOUT_SEC 30 // (seconds)
+
+  // On the Info Screen, display XY with one decimal place when possible
+  //#define LCD_DECIMAL_SMALL_XY
+
+  // Show the E position (filament used) during printing
+  //#define LCD_SHOW_E_TOTAL
+
+  // Display a negative temperature instead of "err"
+  //#define SHOW_TEMPERATURE_BELOW_ZERO
+
+  /**
+   * LED Control Menu
+   * Add LED Control to the LCD menu
+   */
+  //#define LED_CONTROL_MENU
+  #if ENABLED(LED_CONTROL_MENU)
+    #define LED_COLOR_PRESETS                 // Enable the Preset Color menu option
+    //#define NEO2_COLOR_PRESETS              // Enable a second NeoPixel Preset Color menu option
+    #if ENABLED(LED_COLOR_PRESETS)
+      #define LED_USER_PRESET_RED        255  // User defined RED value
+      #define LED_USER_PRESET_GREEN      128  // User defined GREEN value
+      #define LED_USER_PRESET_BLUE         0  // User defined BLUE value
+      #define LED_USER_PRESET_WHITE      255  // User defined WHITE value
+      #define LED_USER_PRESET_BRIGHTNESS 255  // User defined intensity
+      //#define LED_USER_PRESET_STARTUP       // Have the printer display the user preset color on startup
+    #endif
+    #if ENABLED(NEO2_COLOR_PRESETS)
+      #define NEO2_USER_PRESET_RED        255 // User defined RED value
+      #define NEO2_USER_PRESET_GREEN      128 // User defined GREEN value
+      #define NEO2_USER_PRESET_BLUE         0 // User defined BLUE value
+      #define NEO2_USER_PRESET_WHITE      255 // User defined WHITE value
+      #define NEO2_USER_PRESET_BRIGHTNESS 255 // User defined intensity
+      //#define NEO2_USER_PRESET_STARTUP      // Have the printer display the user preset color on startup for the second strip
+    #endif
+  #endif
+
+#endif // HAS_DISPLAY
+
+#if HAS_FEEDRATE_EDIT
+  #define SPEED_EDIT_MIN    10  // (%) Feedrate percentage edit range minimum
+  #define SPEED_EDIT_MAX   999  // (%) Feedrate percentage edit range maximum
+#endif
+#if HAS_FLOW_EDIT
+  #define FLOW_EDIT_MIN     10  // (%) Flow percentage edit range minimum
+  #define FLOW_EDIT_MAX    999  // (%) Flow percentage edit range maximum
+#endif
+
+// Add 'M73' to set print job progress, overrides Marlin's built-in estimate
+//#define SET_PROGRESS_MANUALLY
+#if ENABLED(SET_PROGRESS_MANUALLY)
+  #define SET_PROGRESS_PERCENT            // Add 'P' parameter to set percentage done
+  #define SET_REMAINING_TIME              // Add 'R' parameter to set remaining time
+  //#define SET_INTERACTION_TIME          // Add 'C' parameter to set time until next filament change or other user interaction
+  //#define M73_REPORT                    // Report M73 values to host
+  #if ALL(M73_REPORT, HAS_MEDIA)
+    #define M73_REPORT_SD_ONLY            // Report only when printing from SD
+  #endif
+#endif
+
+// LCD Print Progress options. Multiple times may be displayed in turn.
+#if HAS_DISPLAY && ANY(HAS_MEDIA, SET_PROGRESS_MANUALLY)
+  #define SHOW_PROGRESS_PERCENT           // Show print progress percentage (doesn't affect progress bar)
+  #define SHOW_ELAPSED_TIME               // Display elapsed printing time (prefix 'E')
+  //#define SHOW_REMAINING_TIME           // Display estimated time to completion (prefix 'R')
+  #if ENABLED(SET_INTERACTION_TIME)
+    #define SHOW_INTERACTION_TIME         // Display time until next user interaction ('C' = filament change)
+  #endif
+  #define PRINT_PROGRESS_SHOW_DECIMALS    // Show/report progress with decimal digits, not all UIs support this
+
+  #if ANY(HAS_MARLINUI_HD44780, IS_TFTGLCD_PANEL)
+    //#define LCD_PROGRESS_BAR            // Show a progress bar on HD44780 LCDs for SD printing
+    #if ENABLED(LCD_PROGRESS_BAR)
+      #define PROGRESS_BAR_BAR_TIME 2000  // (ms) Amount of time to show the bar
+      #define PROGRESS_BAR_MSG_TIME 3000  // (ms) Amount of time to show the status message
+      #define PROGRESS_MSG_EXPIRE      0  // (ms) Amount of time to retain the status message (0=forever)
+      //#define PROGRESS_MSG_ONCE         // Show the message for MSG_TIME then clear it
+      //#define LCD_PROGRESS_BAR_TEST     // Add a menu item to test the progress bar
+    #endif
+  #endif
+#endif
+
+#if HAS_MEDIA
+  /**
+   * SD Card SPI Speed
+   * May be required to resolve "volume init" errors.
+   *
+   * Enable and set to SPI_HALF_SPEED, SPI_QUARTER_SPEED, or SPI_EIGHTH_SPEED
+   *  otherwise full speed will be applied.
+   *
+   * :['SPI_HALF_SPEED', 'SPI_QUARTER_SPEED', 'SPI_EIGHTH_SPEED']
+   */
+  //#define SD_SPI_SPEED SPI_HALF_SPEED
+
+  // The standard SD detect circuit reads LOW when media is inserted and HIGH when empty.
+  // Enable this option and set to HIGH if your SD cards are incorrectly detected.
+  //#define SD_DETECT_STATE HIGH
+
+  //#define SD_IGNORE_AT_STARTUP            // Don't mount the SD card when starting up
+  //#define SDCARD_READONLY                 // Read-only SD card (to save over 2K of flash)
+
+  //#define GCODE_REPEAT_MARKERS            // Enable G-code M808 to set repeat markers and do looping
+
+  #define SD_PROCEDURE_DEPTH 1              // Increase if you need more nested M32 calls
+
+  #define SD_FINISHED_STEPPERRELEASE true   // Disable steppers when SD Print is finished
+  #define SD_FINISHED_RELEASECOMMAND "M84"  // Use "M84XYE" to keep Z enabled so your bed stays in place
+
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  #define SD_MENU_CONFIRM_START             // Confirm the selected SD file before printing
+
+  //#define NO_SD_AUTOSTART                 // Remove auto#.g file support completely to save some Flash, SRAM
+  //#define MENU_ADDAUTOSTART               // Add a menu option to run auto#.g files
+
+  //#define ONE_CLICK_PRINT                 // Prompt to print the newest file on inserted media
+  //#define BROWSE_MEDIA_ON_INSERT          // Open the file browser when media is inserted
+
+  //#define MEDIA_MENU_AT_TOP               // Force the media menu to be listed on the top of the main menu
+
+  #define EVENT_GCODE_SD_ABORT "G27"      // G-code to run on SD Abort Print (e.g., "G28XY" or "G27")
+
+  #if ENABLED(PRINTER_EVENT_LEDS)
+    #define PE_LEDS_COMPLETED_TIME  (30*60) // (seconds) Time to keep the LED "done" color before restoring normal illumination
+  #endif
+
+  /**
+   * Continue after Power-Loss (Creality3D)
+   *
+   * Store the current state to the SD Card at the start of each layer
+   * during SD printing. If the recovery file is found at boot time, present
+   * an option on the LCD screen to continue the print from the last-known
+   * point in the file.
+   */
+  #define POWER_LOSS_RECOVERY
+  #if ENABLED(POWER_LOSS_RECOVERY)
+    #define PLR_ENABLED_DEFAULT       true  // Power-Loss Recovery enabled by default. (Set with 'M413 Sn' & M500)
+    //#define PLR_BED_THRESHOLD BED_MAXTEMP // (°C) Skip user confirmation at or above this bed temperature (0 to disable)
+
+    #define POWER_LOSS_PIN             PC13 // Pin to detect power-loss. Set to -1 to disable default pin on boards without module, or comment to use board default.
+    #define POWER_LOSS_STATE           LOW  // State of pin indicating power-loss
+    //#define POWER_LOSS_PULLUP             // Set pullup / pulldown as appropriate for your sensor
+    //#define POWER_LOSS_PULLDOWN
+
+    //#define POWER_LOSS_ZRAISE        2    // (mm) Z axis raise on resume (on power-loss with UPS)
+    //#define POWER_LOSS_PURGE_LEN    20    // (mm) Length of filament to purge on resume
+
+    // Without a POWER_LOSS_PIN the following option helps reduce wear on the SD card,
+    // especially with "vase mode" printing. Set too high and vases cannot be continued.
+    #define POWER_LOSS_MIN_Z_CHANGE    0.01 // (mm) Minimum Z change before saving power-loss data
+
+    //#define BACKUP_POWER_SUPPLY           // Backup power / UPS to move the steppers on power-loss
+    #if ENABLED(BACKUP_POWER_SUPPLY)
+      //#define POWER_LOSS_RETRACT_LEN   10 // (mm) Length of filament to retract on fail
+    #endif
+
+    // Enable if Z homing is needed for proper recovery. 99.9% of the time this should be disabled!
+    //#define POWER_LOSS_RECOVER_ZHOME
+    #if ENABLED(POWER_LOSS_RECOVER_ZHOME)
+      //#define POWER_LOSS_ZHOME_POS { 0, 0 } // Safe XY position to home Z while avoiding objects on the bed
+    #endif
+  #endif
+
+  /**
+   * Sort SD file listings in alphabetical order.
+   *
+   * With this option enabled, items on SD cards will be sorted
+   * by name for easier navigation.
+   *
+   * By default...
+   *
+   *  - Use the slowest -but safest- method for sorting.
+   *  - Folders are sorted to the top.
+   *  - The sort key is statically allocated.
+   *  - No added G-code (M34) support.
+   *  - 40 item sorting limit. (Items after the first 40 are unsorted.)
+   *
+   * SD sorting uses static allocation (as set by SDSORT_LIMIT), allowing the
+   * compiler to calculate the worst-case usage and throw an error if the SRAM
+   * limit is exceeded.
+   *
+   *  - SDSORT_USES_RAM provides faster sorting via a static directory buffer.
+   *  - SDSORT_USES_STACK does the same, but uses a local stack-based buffer.
+   *  - SDSORT_CACHE_NAMES will retain the sorted file listing in RAM. (Expensive!)
+   *  - SDSORT_DYNAMIC_RAM only uses RAM when the SD menu is visible. (Use with caution!)
+   */
+  //#define SDCARD_SORT_ALPHA
+
+  // SD Card Sorting options
+  #if ENABLED(SDCARD_SORT_ALPHA)
+    #define SDSORT_REVERSE     false  // Default to sorting file names in reverse order.
+    #define SDSORT_LIMIT       40     // Maximum number of sorted items (10-256). Costs 27 bytes each.
+    #define SDSORT_FOLDERS     -1     // -1=above  0=none  1=below
+    #define SDSORT_GCODE       false  // Enable G-code M34 to set sorting behaviors: M34 S<-1|0|1> F<-1|0|1>
+    #define SDSORT_USES_RAM    false  // Pre-allocate a static array for faster pre-sorting.
+    #define SDSORT_USES_STACK  false  // Prefer the stack for pre-sorting to give back some SRAM. (Negated by next 2 options.)
+    #define SDSORT_CACHE_NAMES false  // Keep sorted items in RAM longer for speedy performance. Most expensive option.
+    #define SDSORT_DYNAMIC_RAM false  // Use dynamic allocation (within SD menus). Least expensive option. Set SDSORT_LIMIT before use!
+    #define SDSORT_CACHE_VFATS 2      // Maximum number of 13-byte VFAT entries to use for sorting.
+                                      // Note: Only affects SCROLL_LONG_FILENAMES with SDSORT_CACHE_NAMES but not SDSORT_DYNAMIC_RAM.
+  #endif
+
+  // Allow international symbols in long filenames. To display correctly, the
+  // LCD's font must contain the characters. Check your selected LCD language.
+  //#define UTF_FILENAME_SUPPORT
+
+  #define LONG_FILENAME_HOST_SUPPORT      // Get the long filename of a file/folder with 'M33 <dosname>' and list long filenames with 'M20 L'
+  //#define LONG_FILENAME_WRITE_SUPPORT   // Create / delete files with long filenames via M28, M30, and Binary Transfer Protocol
+  //#define M20_TIMESTAMP_SUPPORT         // Include timestamps by adding the 'T' flag to M20 commands
+
+  #define SCROLL_LONG_FILENAMES           // Scroll long filenames in the SD card menu
+
+  //#define SD_ABORT_NO_COOLDOWN          // Leave the heaters on after Stop Print (not recommended!)
+
+  /**
+   * Abort SD printing when any endstop is triggered.
+   * This feature is enabled with 'M540 S1' or from the LCD menu.
+   * Endstops must be activated for this option to work.
+   */
+  //#define SD_ABORT_ON_ENDSTOP_HIT
+  #if ENABLED(SD_ABORT_ON_ENDSTOP_HIT)
+    //#define SD_ABORT_ON_ENDSTOP_HIT_GCODE "G28XY" // G-code to run on endstop hit (e.g., "G28XY" or "G27")
+  #endif
+
+  //#define SD_REPRINT_LAST_SELECTED_FILE // On print completion open the LCD Menu and select the same file
+
+  //#define AUTO_REPORT_SD_STATUS         // Auto-report media status with 'M27 S<seconds>'
+
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E can be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN [1]
+   *    SS               --> SDSS
+   *
+   * [1] On AVR an interrupt-capable pin is best for UHS3 compatibility.
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    /**
+     * USB Host Shield Library
+     *
+     * - UHS2 uses no interrupts and has been production-tested
+     *   on a LulzBot TAZ Pro with a 32-bit Archim board.
+     *
+     * - UHS3 is newer code with better USB compatibility. But it
+     *   is less tested and is known to interfere with Servos.
+     *   [1] This requires USB_INTR_PIN to be interrupt-capable.
+     */
+    //#define USE_UHS2_USB
+    //#define USE_UHS3_USB
+
+    #define DISABLE_DUE_SD_MMC // Disable USB Host access to USB Drive to prevent hangs on block access for DUE platform
+
+    /**
+     * Native USB Host supported by some boards (USB OTG)
+     */
+    //#define USE_OTG_USB_HOST
+
+    #if DISABLED(USE_OTG_USB_HOST)
+      #define USB_CS_PIN    SDSS
+      #define USB_INTR_PIN  SD_DETECT_PIN
+    #endif
+  #endif
+
+  /**
+   * When using a bootloader that supports SD-Firmware-Flashing,
+   * add a menu item to activate SD-FW-Update on the next reboot.
+   *
+   * Requires ATMEGA2560 (Arduino Mega)
+   *
+   * Tested with this bootloader:
+   *   https://github.com/FleetProbe/MicroBridge-Arduino-ATMega2560
+   */
+  //#define SD_FIRMWARE_UPDATE
+  #if ENABLED(SD_FIRMWARE_UPDATE)
+    #define SD_FIRMWARE_UPDATE_EEPROM_ADDR    0x1FF
+    #define SD_FIRMWARE_UPDATE_ACTIVE_VALUE   0xF0
+    #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
+  #endif
+
+  /**
+   * Enable this option if you have more than ~3K of unused flash space.
+   * Marlin will embed all settings in the firmware binary as compressed data.
+   * Use 'M503 C' to write the settings out to the SD Card as 'mc.zip'.
+   * See docs/ConfigEmbedding.md for details on how to use 'mc-apply.py'.
+   */
+  //#define CONFIGURATION_EMBEDDING
+
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define BINARY_FILE_TRANSFER
+
+  #if ENABLED(BINARY_FILE_TRANSFER)
+    // Include extra facilities (e.g., 'M20 F') supporting firmware upload via BINARY_FILE_TRANSFER
+    //#define CUSTOM_FIRMWARE_UPLOAD
+  #endif
+
+  /**
+   * Set this option to one of the following (or the board's defaults apply):
+   *
+   *           LCD - Use the SD drive in the external LCD controller.
+   *       ONBOARD - Use the SD drive on the control board.
+   *  CUSTOM_CABLE - Use a custom cable to access the SD (as defined in a pins file).
+   *
+   * :[ 'LCD', 'ONBOARD', 'CUSTOM_CABLE' ]
+   */
+  //#define SDCARD_CONNECTION LCD
+
+  // Enable if SD detect is rendered useless (e.g., by using an SD extender)
+  //#define NO_SD_DETECT
+
+  /**
+   * Multiple volume support - EXPERIMENTAL.
+   * Adds 'M21 Pm' / 'M21 S' / 'M21 U' to mount SD Card / USB Drive.
+   */
+  //#define MULTI_VOLUME
+  #if ENABLED(MULTI_VOLUME)
+    #define VOLUME_SD_ONBOARD
+    #define VOLUME_USB_FLASH_DRIVE
+    #define DEFAULT_VOLUME SV_SD_ONBOARD
+    #define DEFAULT_SHARED_VOLUME SV_USB_FLASH_DRIVE
+  #endif
+
+#endif // HAS_MEDIA
+
+/**
+ * By default an onboard SD card reader may be shared as a USB mass-
+ * storage device. This option hides the SD card from the host PC.
+ */
+//#define NO_SD_HOST_DRIVE   // Disable SD Card access over USB (for security).
+
+/**
+ * Additional options for Graphical Displays
+ *
+ * Use the optimizations here to improve printing performance,
+ * which can be adversely affected by graphical display drawing,
+ * especially when doing several short moves, and when printing
+ * on DELTA and SCARA machines.
+ *
+ * Some of these options may result in the display lagging behind
+ * controller events, as there is a trade-off between reliable
+ * printing performance versus fast display updates.
+ */
+#if HAS_MARLINUI_U8GLIB
+  // Save many cycles by drawing a hollow frame or no frame on the Info Screen
+  //#define XYZ_NO_FRAME
+  #define XYZ_HOLLOW_FRAME
+
+  // A bigger font is available for edit items. Costs 3120 bytes of flash.
+  // Western only. Not available for Cyrillic, Kana, Turkish, Greek, or Chinese.
+  //#define USE_BIG_EDIT_FONT
+
+  // A smaller font may be used on the Info Screen. Costs 2434 bytes of flash.
+  // Western only. Not available for Cyrillic, Kana, Turkish, Greek, or Chinese.
+  //#define USE_SMALL_INFOFONT
+
+  /**
+   * ST7920-based LCDs can emulate a 16 x 4 character display using
+   * the ST7920 character-generator for very fast screen updates.
+   * Enable LIGHTWEIGHT_UI to use this special display mode.
+   *
+   * Since LIGHTWEIGHT_UI has limited space, the position and status
+   * message occupy the same line. Set STATUS_EXPIRE_SECONDS to the
+   * length of time to display the status message before clearing.
+   *
+   * Set STATUS_EXPIRE_SECONDS to zero to never clear the status.
+   * This will prevent position updates from being displayed.
+   */
+  #if IS_U8GLIB_ST7920
+    // Enable this option and reduce the value to optimize screen updates.
+    // The normal delay is 10µs. Use the lowest value that still gives a reliable display.
+    //#define DOGM_SPI_DELAY_US 5
+
+    //#define LIGHTWEIGHT_UI
+    #if ENABLED(LIGHTWEIGHT_UI)
+      #define STATUS_EXPIRE_SECONDS 20
+    #endif
+  #endif
+
+  /**
+   * Status (Info) Screen customization
+   * These options may affect code size and screen render time.
+   * Custom status screens can forcibly override these settings.
+   */
+  //#define STATUS_COMBINE_HEATERS    // Use combined heater images instead of separate ones
+  //#define STATUS_HOTEND_NUMBERLESS  // Use plain hotend icons instead of numbered ones (with 2+ hotends)
+  //#define STATUS_HOTEND_INVERTED    // Show solid nozzle bitmaps when heating (Requires STATUS_HOTEND_ANIM for numbered hotends)
+  //#define STATUS_HOTEND_ANIM        // Use a second bitmap to indicate hotend heating
+  //#define STATUS_BED_ANIM           // Use a second bitmap to indicate bed heating
+  //#define STATUS_CHAMBER_ANIM       // Use a second bitmap to indicate chamber heating
+  //#define STATUS_CUTTER_ANIM        // Use a second bitmap to indicate spindle / laser active
+  //#define STATUS_COOLER_ANIM        // Use a second bitmap to indicate laser cooling
+  //#define STATUS_FLOWMETER_ANIM     // Use multiple bitmaps to indicate coolant flow
+  //#define STATUS_ALT_BED_BITMAP     // Use the alternative bed bitmap
+  //#define STATUS_ALT_FAN_BITMAP     // Use the alternative fan bitmap
+  //#define STATUS_FAN_FRAMES 3       // :[0,1,2,3,4] Number of fan animation frames
+
+  // Only one STATUS_HEAT_* option can be enabled
+  //#define STATUS_HEAT_PERCENT       // Show heating in a progress bar
+  //#define STATUS_HEAT_POWER         // Show heater output power as a vertical bar
+
+  // Frivolous Game Options
+  //#define MARLIN_BRICKOUT
+  //#define MARLIN_INVADERS
+  //#define MARLIN_SNAKE
+  //#define GAMES_EASTER_EGG          // Add extra blank lines above the "Games" sub-menu
+
+#endif // HAS_MARLINUI_U8GLIB
+
+#if HAS_MARLINUI_U8GLIB || IS_DWIN_MARLINUI
+  #define MENU_HOLLOW_FRAME           // Enable to save many cycles by drawing a hollow frame on Menu Screens
+  //#define OVERLAY_GFX_REVERSE       // Swap the CW/CCW indicators in the graphics overlay
+#endif
+
+//
+// Additional options for DGUS / DWIN displays
+//
+#if HAS_DGUS_LCD
+  #define LCD_BAUDRATE 115200
+
+  #define DGUS_RX_BUFFER_SIZE 128
+  #define DGUS_TX_BUFFER_SIZE 48
+  //#define SERIAL_STATS_RX_BUFFER_OVERRUNS  // Fix Rx overrun situation (Currently only for AVR)
+
+  #define DGUS_UPDATE_INTERVAL_MS  500    // (ms) Interval between automatic screen updates
+
+  #if DGUS_UI_IS(FYSETC, MKS, HIPRECY)
+    #define DGUS_PRINT_FILENAME           // Display the filename during printing
+    #define DGUS_PREHEAT_UI               // Display a preheat screen during heatup
+
+    #if DGUS_UI_IS(FYSETC, MKS)
+      //#define DGUS_UI_MOVE_DIS_OPTION   // Disabled by default for FYSETC and MKS
+    #else
+      #define DGUS_UI_MOVE_DIS_OPTION     // Enabled by default for UI_HIPRECY
+    #endif
+
+    #define DGUS_FILAMENT_LOADUNLOAD
+    #if ENABLED(DGUS_FILAMENT_LOADUNLOAD)
+      #define DGUS_FILAMENT_PURGE_LENGTH 10
+      #define DGUS_FILAMENT_LOAD_LENGTH_PER_TIME 0.5 // (mm) Adjust in proportion to DGUS_UPDATE_INTERVAL_MS
+    #endif
+
+    #define DGUS_UI_WAITING               // Show a "waiting" screen between some screens
+    #if ENABLED(DGUS_UI_WAITING)
+      #define DGUS_UI_WAITING_STATUS 10
+      #define DGUS_UI_WAITING_STATUS_PERIOD 8 // Increase to slower waiting status looping
+    #endif
+
+  #elif DGUS_UI_IS(E3S1PRO)
+    /**
+     * The stock Ender-3 S1 Pro/Plus display firmware has rather poor SD file handling.
+     *
+     * The autoscroll is mainly useful for status messages, filenames, and the "About" page.
+     *
+     * NOTE: The Advanced SD Card option is affected by the stock touchscreen firmware, so
+     *       pages 5 and up will display "4/4". This may get fixed in a screen firmware update.
+     */
+    #define DGUS_SOFTWARE_AUTOSCROLL        // Enable long text software auto-scroll
+    #define DGUS_AUTOSCROLL_START_CYCLES 1  // Refresh cycles without scrolling at the beginning of text strings
+    #define DGUS_AUTOSCROLL_END_CYCLES 1    // ... at the end of text strings
+
+    #define DGUS_ADVANCED_SDCARD            // Allow more than 20 files and navigating directories
+    #define DGUS_USERCONFIRM                // Reuse the SD Card page to show various messages
+  #endif
+#endif // HAS_DGUS_LCD
+
+//
+// Additional options for AnyCubic Chiron TFT displays
+//
+#if ENABLED(ANYCUBIC_LCD_CHIRON)
+  // By default the type of panel is automatically detected.
+  // Enable one of these options if you know the panel type.
+  //#define CHIRON_TFT_STANDARD
+  //#define CHIRON_TFT_NEW
+
+  // Enable the longer Anycubic powerup startup tune
+  //#define AC_DEFAULT_STARTUP_TUNE
+
+  /**
+   * Display Folders
+   * By default the file browser lists all G-code files (including those in subfolders) in a flat list.
+   * Enable this option to display a hierarchical file browser.
+   *
+   * NOTES:
+   * - Without this option it helps to enable SDCARD_SORT_ALPHA so files are sorted before/after folders.
+   * - When used with the "new" panel, folder names will also have '.gcode' appended to their names.
+   *   This hack is currently required to force the panel to show folders.
+   */
+  #define AC_SD_FOLDER_VIEW
+#endif
+
+//
+// Specify additional languages for the UI. Default specified by LCD_LANGUAGE.
+//
+#if ANY(DOGLCD, TFT_COLOR_UI, TOUCH_UI_FTDI_EVE, IS_DWIN_MARLINUI, ANYCUBIC_LCD_VYPER)
+  //#define LCD_LANGUAGE_2 fr
+  //#define LCD_LANGUAGE_3 de
+  //#define LCD_LANGUAGE_4 es
+  //#define LCD_LANGUAGE_5 it
+  #ifdef LCD_LANGUAGE_2
+    //#define LCD_LANGUAGE_AUTO_SAVE // Automatically save language to EEPROM on change
+  #endif
+#endif
+
+//
+// Touch UI for the FTDI Embedded Video Engine (EVE)
+//
+#if ENABLED(TOUCH_UI_FTDI_EVE)
+  // Display board used
+  //#define LCD_FTDI_VM800B35A        // FTDI 3.5" with FT800 (320x240)
+  //#define LCD_4DSYSTEMS_4DLCD_FT843 // 4D Systems 4.3" (480x272)
+  //#define LCD_HAOYU_FT800CB         // Haoyu with 4.3" or 5" (480x272)
+  //#define LCD_HAOYU_FT810CB         // Haoyu with 5" (800x480)
+  //#define LCD_LULZBOT_CLCD_UI       // LulzBot Color LCD UI
+  //#define LCD_FYSETC_TFT81050       // FYSETC with 5" (800x480)
+  //#define LCD_EVE3_50G              // Matrix Orbital 5.0", 800x480, BT815
+  //#define LCD_EVE2_50G              // Matrix Orbital 5.0", 800x480, FT813
+
+  // Correct the resolution if not using the stock TFT panel.
+  //#define TOUCH_UI_320x240
+  //#define TOUCH_UI_480x272
+  //#define TOUCH_UI_800x480
+
+  // Mappings for boards with a standard RepRapDiscount Display connector
+  //#define AO_EXP1_PINMAP      // LulzBot CLCD UI EXP1 mapping
+  //#define AO_EXP2_PINMAP      // LulzBot CLCD UI EXP2 mapping
+  //#define CR10_TFT_PINMAP     // Rudolph Riedel's CR10 pin mapping
+  //#define S6_TFT_PINMAP       // FYSETC S6 pin mapping
+  //#define F6_TFT_PINMAP       // FYSETC F6 pin mapping
+
+  //#define OTHER_PIN_LAYOUT  // Define pins manually below
+  #if ENABLED(OTHER_PIN_LAYOUT)
+    // Pins for CS and MOD_RESET (PD) must be chosen
+    #define CLCD_MOD_RESET  9
+    #define CLCD_SPI_CS    10
+
+    // If using software SPI, specify pins for SCLK, MOSI, MISO
+    //#define CLCD_USE_SOFT_SPI
+    #if ENABLED(CLCD_USE_SOFT_SPI)
+      #define CLCD_SOFT_SPI_MOSI 11
+      #define CLCD_SOFT_SPI_MISO 12
+      #define CLCD_SOFT_SPI_SCLK 13
+    #endif
+  #endif
+
+  // Display Orientation. An inverted (i.e. upside-down) display
+  // is supported on the FT800. The FT810 and beyond also support
+  // portrait and mirrored orientations.
+  //#define TOUCH_UI_INVERTED
+  //#define TOUCH_UI_PORTRAIT
+  //#define TOUCH_UI_MIRRORED
+
+  // UTF8 processing and rendering.
+  // Unsupported characters are shown as '?'.
+  //#define TOUCH_UI_USE_UTF8
+  #if ENABLED(TOUCH_UI_USE_UTF8)
+    // Western accents support. These accented characters use
+    // combined bitmaps and require relatively little storage.
+    #define TOUCH_UI_UTF8_WESTERN_CHARSET
+    #if ENABLED(TOUCH_UI_UTF8_WESTERN_CHARSET)
+      // Additional character groups. These characters require
+      // full bitmaps and take up considerable storage:
+      //#define TOUCH_UI_UTF8_SUPERSCRIPTS  // ¹ ² ³
+      //#define TOUCH_UI_UTF8_COPYRIGHT     // © ®
+      //#define TOUCH_UI_UTF8_GERMANIC      // ß
+      //#define TOUCH_UI_UTF8_SCANDINAVIAN  // Æ Ð Ø Þ æ ð ø þ
+      //#define TOUCH_UI_UTF8_PUNCTUATION   // « » ¿ ¡
+      //#define TOUCH_UI_UTF8_CURRENCY      // ¢ £ ¤ ¥
+      //#define TOUCH_UI_UTF8_ORDINALS      // º ª
+      //#define TOUCH_UI_UTF8_MATHEMATICS   // ± × ÷
+      //#define TOUCH_UI_UTF8_FRACTIONS     // ¼ ½ ¾
+      //#define TOUCH_UI_UTF8_SYMBOLS       // µ ¶ ¦ § ¬
+    #endif
+
+    // Cyrillic character set, costs about 27KiB of flash
+    //#define TOUCH_UI_UTF8_CYRILLIC_CHARSET
+  #endif
+
+  // Use a smaller font when labels don't fit buttons
+  #define TOUCH_UI_FIT_TEXT
+
+  // Use a numeric passcode for "Screen lock" keypad.
+  // (recommended for smaller displays)
+  //#define TOUCH_UI_PASSCODE
+
+  // Output extra debug info for Touch UI events
+  //#define TOUCH_UI_DEBUG
+
+  // Developer menu (accessed by touching "About Printer" copyright text)
+  //#define TOUCH_UI_DEVELOPER_MENU
+#endif
+
+//
+// Classic UI Options
+//
+#if TFT_SCALED_DOGLCD
+  //#define TFT_MARLINUI_COLOR 0xFFFF // White
+  //#define TFT_MARLINBG_COLOR 0x0000 // Black
+  //#define TFT_DISABLED_COLOR 0x0003 // Almost black
+  //#define TFT_BTCANCEL_COLOR 0xF800 // Red
+  //#define TFT_BTARROWS_COLOR 0xDEE6 // 11011 110111 00110 Yellow
+  //#define TFT_BTOKMENU_COLOR 0x145F // 00010 100010 11111 Cyan
+#endif
+
+/**
+ * Display Sleep
+ * Enable this option to save energy and prevent OLED pixel burn-in.
+ */
+//#define DISPLAY_SLEEP_MINUTES 2       // (minutes) Timeout before turning off the screen
+
+/**
+ * LCD Backlight Timeout
+ * Requires a display with a controllable backlight
+ */
+//#define LCD_BACKLIGHT_TIMEOUT_MINS 1  // (minutes) Timeout before turning off the backlight
+
+#if defined(DISPLAY_SLEEP_MINUTES) || defined(LCD_BACKLIGHT_TIMEOUT_MINS)
+  #define EDITABLE_DISPLAY_TIMEOUT      // Edit sleep / backlight timeout with M255 S<minutes> and a menu item
+#endif
+
+//
+// ADC Button Debounce
+//
+#if HAS_ADC_BUTTONS
+  #define ADC_BUTTON_DEBOUNCE_DELAY 16  // Increase if buttons bounce or repeat too fast
+#endif
+
+// @section safety
+
+/**
+ * The watchdog hardware timer will do a reset and disable all outputs
+ * if the firmware gets too overloaded to read the temperature sensors.
+ *
+ * If you find that watchdog reboot causes your AVR board to hang forever,
+ * enable WATCHDOG_RESET_MANUAL to use a custom timer instead of WDTO.
+ * NOTE: This method is less reliable as it can only catch hangups while
+ * interrupts are enabled.
+ */
+#define USE_WATCHDOG
+#if ENABLED(USE_WATCHDOG)
+  //#define WATCHDOG_RESET_MANUAL
+#endif
+
+// @section lcd
+
+/**
+ * Babystepping enables movement of the axes by tiny increments without changing
+ * the current position values. This feature is used primarily to adjust the Z
+ * axis in the first layer of a print in real-time.
+ *
+ * Warning: Does not respect endstops!
+ */
+#define BABYSTEPPING
+#if ENABLED(BABYSTEPPING)
+  //#define EP_BABYSTEPPING                 // M293/M294 babystepping with EMERGENCY_PARSER support
+  //#define BABYSTEP_WITHOUT_HOMING
+  //#define BABYSTEP_ALWAYS_AVAILABLE       // Allow babystepping at all times (not just during movement)
+  //#define BABYSTEP_XY                     // Also enable X/Y Babystepping. Not supported on DELTA!
+  //#define BABYSTEP_INVERT_Z               // Enable if Z babysteps should go the other way
+  //#define BABYSTEP_MILLIMETER_UNITS       // Specify BABYSTEP_MULTIPLICATOR_(XY|Z) in mm instead of micro-steps
+  #define BABYSTEP_MULTIPLICATOR_Z  8       // (steps or mm) Steps or millimeter distance for each Z babystep
+  #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
+
+  //#define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
+    #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
+                                            // Note: Extra time may be added to mitigate controller latency.
+    //#define MOVE_Z_WHEN_IDLE              // Jump to the move Z menu on double-click when printer is idle.
+    #if ENABLED(MOVE_Z_WHEN_IDLE)
+      #define MOVE_Z_IDLE_MULTIPLICATOR 1   // Multiply 1mm by this factor for the move step size.
+    #endif
+  #endif
+
+  //#define BABYSTEP_DISPLAY_TOTAL          // Display total babysteps since last G28
+
+  #define BABYSTEP_ZPROBE_OFFSET            // Combine M851 Z and Babystepping
+  //#define BABYSTEP_GLOBAL_Z               // Combine M424 Z and Babystepping
+
+  #if ANY(BABYSTEP_ZPROBE_OFFSET, BABYSTEP_GLOBAL_Z)
+    #if ENABLED(BABYSTEP_ZPROBE_OFFSET)
+      //#define BABYSTEP_HOTEND_Z_OFFSET    // For multiple hotends, babystep relative Z offsets
+    #endif
+    //#define BABYSTEP_GFX_OVERLAY          // Enable graphical overlay on Z-offset editor
+  #endif
+#endif
+
+// @section extruder
+
+/**
+ * Linear Pressure Control v1.5
+ *
+ * Assumption: advance [steps] = k * (delta velocity [steps/s])
+ * K=0 means advance disabled.
+ *
+ * NOTE: K values for LIN_ADVANCE 1.5 differ from earlier versions!
+ *
+ * Set K around 0.22 for 3mm PLA Direct Drive with ~6.5cm between the drive gear and heatbreak.
+ * Larger K values will be needed for flexible filament and greater distances.
+ * If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
+ * print acceleration will be reduced during the affected moves to keep within the limit.
+ *
+ * See https://marlinfw.org/docs/features/lin_advance.html for full instructions.
+ */
+#define LIN_ADVANCE
+#if ENABLED(LIN_ADVANCE)
+  #if ENABLED(DISTINCT_E_FACTORS)
+    #define ADVANCE_K { 0.04 }    // (mm) Compression length per 1mm/s extruder speed, per extruder
+  #else
+    #define ADVANCE_K 0.04        // (mm) Compression length applying to all extruders
+  #endif
+  //#define ADVANCE_K_EXTRA       // Add a second linear advance constant, configurable with M900 L.
+  //#define LA_DEBUG              // Print debug information to serial during operation. Disable for production use.
+  //#define EXPERIMENTAL_I2S_LA   // Allow I2S_STEPPER_STREAM to be used with LA. Performance degrades as the LA step rate reaches ~20kHz.
+#endif
+
+/**
+ * Nonlinear Extrusion Control
+ *
+ * Control extrusion rate based on instantaneous extruder velocity. Can be used to correct for
+ * underextrusion at high extruder speeds that are otherwise well-behaved (i.e., not skipping).
+ * For better results also enable ADAPTIVE_STEP_SMOOTHING.
+ */
+//#define NONLINEAR_EXTRUSION
+
+// @section leveling
+
+/**
+ * Use Safe Bed Leveling coordinates to move axes to a useful position before bed probing.
+ * For example, after homing a rotational axis the Z probe might not be perpendicular to the bed.
+ * Choose values the orient the bed horizontally and the Z-probe vertically.
+ */
+//#define SAFE_BED_LEVELING_START_X 0.0
+//#define SAFE_BED_LEVELING_START_Y 0.0
+//#define SAFE_BED_LEVELING_START_Z 0.0
+//#define SAFE_BED_LEVELING_START_I 0.0
+//#define SAFE_BED_LEVELING_START_J 0.0
+//#define SAFE_BED_LEVELING_START_K 0.0
+//#define SAFE_BED_LEVELING_START_U 0.0
+//#define SAFE_BED_LEVELING_START_V 0.0
+//#define SAFE_BED_LEVELING_START_W 0.0
+
+/**
+ * Points to probe for all 3-point Leveling procedures.
+ * Override if the automatically selected points are inadequate.
+ */
+#if NEEDS_THREE_PROBE_POINTS
+  //#define PROBE_PT_1 {  15, 180 }   // (mm) { x, y }
+  //#define PROBE_PT_2 {  15,  20 }
+  //#define PROBE_PT_3 { 170,  20 }
+#endif
+
+/**
+ * Probing Margins
+ *
+ * Override PROBING_MARGIN for each side of the build plate
+ * Useful to get probe points to exact positions on targets or
+ * to allow leveling to avoid plate clamps on only specific
+ * sides of the bed. With NOZZLE_AS_PROBE negative values are
+ * allowed, to permit probing outside the bed.
+ *
+ * If you are replacing the prior *_PROBE_BED_POSITION options,
+ * LEFT and FRONT values in most cases will map directly over
+ * RIGHT and REAR would be the inverse such as
+ * (X/Y_BED_SIZE - RIGHT/BACK_PROBE_BED_POSITION)
+ *
+ * This will allow all positions to match at compilation, however
+ * should the probe position be modified with M851XY then the
+ * probe points will follow. This prevents any change from causing
+ * the probe to be unable to reach any points.
+ */
+#if PROBE_SELECTED && !IS_KINEMATIC
+  #define PROBING_MARGIN_LEFT 25
+  #define PROBING_MARGIN_RIGHT 10
+  #define PROBING_MARGIN_FRONT 10
+  #define PROBING_MARGIN_BACK 25
+#endif
+
+#if ANY(MESH_BED_LEVELING, AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
+#endif
+
+#if ALL(AUTO_BED_LEVELING_UBL, EEPROM_SETTINGS)
+  //#define OPTIMIZED_MESH_STORAGE  // Store mesh with less precision to save EEPROM space
+#endif
+
+/**
+ * Repeatedly attempt G29 leveling until it succeeds.
+ * Stop after G29_MAX_RETRIES attempts.
+ */
+//#define G29_RETRY_AND_RECOVER
+#if ENABLED(G29_RETRY_AND_RECOVER)
+  #define G29_MAX_RETRIES 3
+  #define G29_HALT_ON_FAILURE
+  /**
+   * Specify the GCODE commands that will be executed when leveling succeeds,
+   * between attempts, and after the maximum number of retries have been tried.
+   */
+  #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
+  #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
+  #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
+
+#endif
+
+// @section probes
+
+/**
+ * Thermal Probe Compensation
+ *
+ * Adjust probe measurements to compensate for distortion associated with the temperature
+ * of the probe, bed, and/or hotend.
+ * Use G76 to automatically calibrate this feature for probe and bed temperatures.
+ * (Extruder temperature/offset values must be calibrated manually.)
+ * Use M871 to set temperature/offset values manually.
+ * For more details see https://marlinfw.org/docs/features/probe_temp_compensation.html
+ */
+//#define PTC_PROBE    // Compensate based on probe temperature
+//#define PTC_BED      // Compensate based on bed temperature
+//#define PTC_HOTEND   // Compensate based on hotend temperature
+
+#if ANY(PTC_PROBE, PTC_BED, PTC_HOTEND)
+  /**
+   * If the probe is outside the defined range, use linear extrapolation with the closest
+   * point and the point with index PTC_LINEAR_EXTRAPOLATION. e.g., If set to 4 it will use the
+   * linear extrapolation between data[0] and data[4] for values below PTC_PROBE_START.
+   */
+  //#define PTC_LINEAR_EXTRAPOLATION 4
+
+  #if ENABLED(PTC_PROBE)
+    // Probe temperature calibration generates a table of values starting at PTC_PROBE_START
+    // (e.g., 30), in steps of PTC_PROBE_RES (e.g., 5) with PTC_PROBE_COUNT (e.g., 10) samples.
+    #define PTC_PROBE_START   30    // (°C)
+    #define PTC_PROBE_RES      5    // (°C)
+    #define PTC_PROBE_COUNT   10
+    #define PTC_PROBE_ZOFFS   { 0 } // (µm) Z adjustments per sample
+  #endif
+
+  #if ENABLED(PTC_BED)
+    // Bed temperature calibration builds a similar table.
+    #define PTC_BED_START     60    // (°C)
+    #define PTC_BED_RES        5    // (°C)
+    #define PTC_BED_COUNT     10
+    #define PTC_BED_ZOFFS     { 0 } // (µm) Z adjustments per sample
+  #endif
+
+  #if ENABLED(PTC_HOTEND)
+    // Note: There is no automatic calibration for the hotend. Use M871.
+    #define PTC_HOTEND_START 180    // (°C)
+    #define PTC_HOTEND_RES     5    // (°C)
+    #define PTC_HOTEND_COUNT  20
+    #define PTC_HOTEND_ZOFFS  { 0 } // (µm) Z adjustments per sample
+  #endif
+
+  // G76 options
+  #if ALL(PTC_PROBE, PTC_BED)
+    // Park position to wait for probe cooldown
+    #define PTC_PARK_POS   { 0, 0, 100 }
+
+    // Probe position to probe and wait for probe to reach target temperature
+    //#define PTC_PROBE_POS  { 12.0f, 7.3f } // Example: MK52 magnetic heatbed
+    #define PTC_PROBE_POS  { 90, 100 }
+
+    // The temperature the probe should be at while taking measurements during
+    // bed temperature calibration.
+    #define PTC_PROBE_TEMP    30  // (°C)
+
+    // Height above Z=0.0 to raise the nozzle. Lowering this can help the probe to heat faster.
+    // Note: The Z=0.0 offset is determined by the probe Z offset (e.g., as set with M851 Z).
+    #define PTC_PROBE_HEATING_OFFSET 0.5  // (mm)
+  #endif
+#endif // PTC_PROBE || PTC_BED || PTC_HOTEND
+
+// @section extras
+
+//
+// G60/G61 Position Save and Return
+//
+#define SAVED_POSITIONS 1           // Each saved position slot costs 12 bytes
+
+//
+// G2/G3 Arc Support
+//
+#define ARC_SUPPORT                   // Requires ~3226 bytes
+#if ENABLED(ARC_SUPPORT)
+  #define MIN_ARC_SEGMENT_MM      0.1 // (mm) Minimum length of each arc segment
+  #define MAX_ARC_SEGMENT_MM      1.0 // (mm) Maximum length of each arc segment
+  #define MIN_CIRCLE_SEGMENTS    72   // Minimum number of segments in a complete circle
+  //#define ARC_SEGMENTS_PER_SEC 50   // Use the feedrate to choose the segment length
+  #define N_ARC_CORRECTION       25   // Number of interpolated segments between corrections
+  //#define ARC_P_CIRCLES             // Enable the 'P' parameter to specify complete circles
+  //#define SF_ARC_FIX                // Enable only if using SkeinForge with "Arc Point" fillet procedure
+#endif
+
+// G5 Bézier Curve Support with XYZE destination and IJPQ offsets
+//#define BEZIER_CURVE_SUPPORT        // Requires ~2666 bytes
+
+#if ANY(ARC_SUPPORT, BEZIER_CURVE_SUPPORT)
+  //#define CNC_WORKSPACE_PLANES      // Allow G2/G3/G5 to operate in XY, ZX, or YZ planes
+#endif
+
+/**
+ * Direct Stepping
+ *
+ * Comparable to the method used by Klipper, G6 direct stepping significantly
+ * reduces motion calculations, increases top printing speeds, and results in
+ * less step aliasing by calculating all motions in advance.
+ * Preparing your G-code: https://github.com/colinrgodsey/step-daemon
+ */
+//#define DIRECT_STEPPING
+
+/**
+ * G38 Probe Target
+ *
+ * This option adds G38.2 and G38.3 (probe towards target)
+ * and optionally G38.4 and G38.5 (probe away from target).
+ * Set MULTIPLE_PROBING for G38 to probe more than once.
+ */
+//#define G38_PROBE_TARGET
+#if ENABLED(G38_PROBE_TARGET)
+  //#define G38_PROBE_AWAY        // Include G38.4 and G38.5 to probe away from target
+  #define G38_MINIMUM_MOVE 0.0275 // (mm) Minimum distance that will produce a move.
+#endif
+
+// @section motion
+
+// Moves (or segments) with fewer steps than this will be joined with the next move
+#define MIN_STEPS_PER_SEGMENT 6
+
+/**
+ * Minimum delay before and after setting the stepper DIR (in ns)
+ *     0 : No delay (Expect at least 10µS since one Stepper ISR must transpire)
+ *    20 : Minimum for TMC2xxx drivers
+ *   200 : Minimum for A4988 drivers
+ *   400 : Minimum for A5984 drivers
+ *   500 : Minimum for LV8729 drivers (guess, no info in datasheet)
+ *   650 : Minimum for DRV8825 drivers
+ *  1500 : Minimum for TB6600 drivers (guess, no info in datasheet)
+ * 15000 : Minimum for TB6560 drivers (guess, no info in datasheet)
+ *
+ * Override the default value based on the driver type set in Configuration.h.
+ */
+//#define MINIMUM_STEPPER_POST_DIR_DELAY 650
+//#define MINIMUM_STEPPER_PRE_DIR_DELAY 650
+
+/**
+ * Minimum stepper driver pulse width (in ns)
+ * If undefined, these defaults (from Conditionals_adv.h) apply:
+ *     100 : Minimum for TMC2xxx stepper drivers
+ *     500 : Minimum for LV8729
+ *    1000 : Minimum for A4988 and A5984 stepper drivers
+ *    2000 : Minimum for DRV8825 stepper drivers
+ *    3000 : Minimum for TB6600 stepper drivers
+ *   30000 : Minimum for TB6560 stepper drivers
+ *
+ * Override the default value based on the driver type set in Configuration.h.
+ */
+//#define MINIMUM_STEPPER_PULSE_NS 2000
+
+/**
+ * Maximum stepping rate (in Hz) the stepper driver allows
+ * If undefined, these defaults (from Conditionals_adv.h) apply:
+ *  5000000 : Maximum for TMC2xxx stepper drivers
+ *  1000000 : Maximum for LV8729 stepper driver
+ *   500000 : Maximum for A4988 stepper driver
+ *   250000 : Maximum for DRV8825 stepper driver
+ *   150000 : Maximum for TB6600 stepper driver
+ *    15000 : Maximum for TB6560 stepper driver
+ *
+ * Override the default value based on the driver type set in Configuration.h.
+ */
+//#define MAXIMUM_STEPPER_RATE 250000
+
+// @section temperature
+
+// Control heater 0 and heater 1 in parallel.
+//#define HEATERS_PARALLEL
+
+//===========================================================================
+//================================= Buffers =================================
+//===========================================================================
+
+// @section gcode
+
+// The number of linear moves that can be in the planner at once.
+#if ALL(HAS_MEDIA, DIRECT_STEPPING)
+  #define BLOCK_BUFFER_SIZE  8
+#elif HAS_MEDIA
+  #define BLOCK_BUFFER_SIZE 16
+#else
+  #define BLOCK_BUFFER_SIZE 16
+#endif
+
+// @section serial
+
+// The ASCII buffer for serial input
+#define MAX_CMD_SIZE 96
+#define BUFSIZE 4
+
+// Transmission to Host Buffer Size
+// To save 386 bytes of flash (and TX_BUFFER_SIZE+3 bytes of RAM) set to 0.
+// To buffer a simple "ok" you need 4 bytes.
+// For ADVANCED_OK (M105) you need 32 bytes.
+// For debug-echo: 128 bytes for the optimal speed.
+// Other output doesn't need to be that speedy.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256]
+#define TX_BUFFER_SIZE 0
+
+// Host Receive Buffer Size
+// Without XON/XOFF flow control (see SERIAL_XON_XOFF below) 32 bytes should be enough.
+// To use flow control, set this buffer size to at least 1024 bytes.
+// :[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048]
+//#define RX_BUFFER_SIZE 1024
+
+#if RX_BUFFER_SIZE >= 1024
+  // Enable to have the controller send XON/XOFF control characters to
+  // the host to signal the RX buffer is becoming full.
+  //#define SERIAL_XON_XOFF
+#endif
+
+#if HAS_MEDIA
+  // Enable this option to collect and display the maximum
+  // RX queue usage after transferring a file to SD.
+  //#define SERIAL_STATS_MAX_RX_QUEUED
+
+  // Enable this option to collect and display the number
+  // of dropped bytes after a file transfer to SD.
+  //#define SERIAL_STATS_DROPPED_RX
+#endif
+
+// Monitor RX buffer usage
+// Dump an error to the serial port if the serial receive buffer overflows.
+// If you see these errors, increase the RX_BUFFER_SIZE value.
+// Not supported on all platforms.
+//#define RX_BUFFER_MONITOR
+
+/**
+ * Emergency Command Parser
+ *
+ * Add a low-level parser to intercept certain commands as they
+ * enter the serial receive buffer, so they cannot be blocked.
+ * Currently handles M108, M112, M410, M876
+ * NOTE: Not yet implemented for all platforms.
+ */
+//#define EMERGENCY_PARSER
+
+/**
+ * Realtime Reporting (requires EMERGENCY_PARSER)
+ *
+ * - Report position and state of the machine (like Grbl).
+ * - Auto-report position during long moves.
+ * - Useful for CNC/LASER.
+ *
+ * Adds support for commands:
+ *  S000 : Report State and Position while moving.
+ *  P000 : Instant Pause / Hold while moving.
+ *  R000 : Resume from Pause / Hold.
+ *
+ * - During Hold all Emergency Parser commands are available, as usual.
+ * - Enable NANODLP_Z_SYNC and NANODLP_ALL_AXIS for move command end-state reports.
+ */
+//#define REALTIME_REPORTING_COMMANDS
+#if ENABLED(REALTIME_REPORTING_COMMANDS)
+  //#define FULL_REPORT_TO_HOST_FEATURE   // Auto-report the machine status like Grbl CNC
+#endif
+
+/**
+ * Bad Serial-connections can miss a received command by sending an 'ok'
+ * Therefore some clients abort after 30 seconds in a timeout.
+ * Some other clients start sending commands while receiving a 'wait'.
+ * This "wait" is only sent when the buffer is empty. 1 second is a good value here.
+ */
+//#define NO_TIMEOUTS 1000 // (ms)
+
+// Some clients will have this feature soon. This could make the NO_TIMEOUTS unnecessary.
+//#define ADVANCED_OK
+
+// Printrun may have trouble receiving long strings all at once.
+// This option inserts short delays between lines of serial output.
+#define SERIAL_OVERRUN_PROTECTION
+
+// For serial echo, the number of digits after the decimal point
+//#define SERIAL_FLOAT_PRECISION 4
+
+/**
+ * This feature is EXPERIMENTAL so use with caution and test thoroughly.
+ * Enable this option to receive data on the serial ports via the onboard DMA
+ * controller for more stable and reliable high-speed serial communication.
+ * Support is currently limited to some STM32 MCUs and all HC32 MCUs.
+ * Note: This has no effect on emulated USB serial ports.
+ */
+//#define SERIAL_DMA
+
+/**
+ * Set the number of proportional font spaces required to fill up a typical character space.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
+ *
+ * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
+ * Otherwise, adjust according to your client and font.
+ */
+#define PROPORTIONAL_FONT_RATIO 1.0
+
+// @section extras
+
+/**
+ * Extra Fan Speed
+ * Adds a secondary fan speed for each print-cooling fan.
+ *   'M106 P<fan> T3-255' : Set a secondary speed for <fan>
+ *   'M106 P<fan> T2'     : Use the set secondary speed
+ *   'M106 P<fan> T1'     : Restore the previous fan speed
+ */
+//#define EXTRA_FAN_SPEED
+
+// @section gcode
+
+/**
+ * Firmware-based and LCD-controlled retract
+ *
+ * Add G10 / G11 commands for automatic firmware-based retract / recover.
+ * Use M207 and M208 to define parameters for retract / recover.
+ *
+ * Use M209 to enable or disable auto-retract.
+ * With auto-retract enabled, all G1 E moves within the set range
+ * will be converted to firmware-based retract/recover moves.
+ *
+ * Be sure to turn off auto-retract during filament change.
+ *
+ * Note that M207 / M208 / M209 settings are saved to EEPROM.
+ */
+//#define FWRETRACT
+#if ENABLED(FWRETRACT)
+  #define FWRETRACT_AUTORETRACT             // Override slicer retractions
+  #if ENABLED(FWRETRACT_AUTORETRACT)
+    #define MIN_AUTORETRACT             0.1 // (mm) Don't convert E moves under this length
+    #define MAX_AUTORETRACT            10.0 // (mm) Don't convert E moves over this length
+  #endif
+  #define RETRACT_LENGTH                3   // (mm) Default retract length (positive value)
+  #define RETRACT_LENGTH_SWAP          13   // (mm) Default swap retract length (positive value)
+  #define RETRACT_FEEDRATE             45   // (mm/s) Default feedrate for retracting
+  #define RETRACT_ZRAISE                0   // (mm) Default retract Z-raise
+  #define RETRACT_RECOVER_LENGTH        0   // (mm) Default additional recover length (added to retract length on recover)
+  #define RETRACT_RECOVER_LENGTH_SWAP   0   // (mm) Default additional swap recover length (added to retract length on recover from toolchange)
+  #define RETRACT_RECOVER_FEEDRATE      8   // (mm/s) Default feedrate for recovering from retraction
+  #define RETRACT_RECOVER_FEEDRATE_SWAP 8   // (mm/s) Default feedrate for recovering from swap retraction
+  #if ENABLED(MIXING_EXTRUDER)
+    //#define RETRACT_SYNC_MIXING           // Retract and restore all mixing steppers simultaneously
+  #endif
+#endif
+
+// @section tool change
+
+/**
+ * Universal tool change settings.
+ * Applies to all types of extruders except where explicitly noted.
+ */
+#if HAS_MULTI_EXTRUDER
+  // Z raise distance for tool-change, as needed for some extruders
+  #define TOOLCHANGE_ZRAISE                 2 // (mm)
+  //#define TOOLCHANGE_ZRAISE_BEFORE_RETRACT  // Apply raise before swap retraction (if enabled)
+  //#define TOOLCHANGE_NO_RETURN              // Never return to previous position on tool-change
+  #if ENABLED(TOOLCHANGE_NO_RETURN)
+    //#define EVENT_GCODE_AFTER_TOOLCHANGE "G12X"   // Extra G-code to run after tool-change
+  #endif
+
+  /**
+   * Extra G-code to run while executing tool-change commands. Can be used to use an additional
+   * stepper motor (e.g., I axis in Configuration.h) to drive the tool-changer.
+   */
+  //#define EVENT_GCODE_TOOLCHANGE_T0 "G28 A\nG1 A0"  // Extra G-code to run while executing tool-change command T0
+  //#define EVENT_GCODE_TOOLCHANGE_T1 "G1 A10"        // Extra G-code to run while executing tool-change command T1
+  //#define EVENT_GCODE_TOOLCHANGE_ALWAYS_RUN         // Always execute above G-code sequences. Use with caution!
+
+  /**
+   * Consider coordinates for EVENT_GCODE_TOOLCHANGE_Tx as relative to T0
+   * so that moves in the specified axes are the same for all tools.
+   */
+  //#define TC_GCODE_USE_GLOBAL_X   // Use X position relative to Tool 0
+  //#define TC_GCODE_USE_GLOBAL_Y   // Use Y position relative to Tool 0
+  //#define TC_GCODE_USE_GLOBAL_Z   // Use Z position relative to Tool 0
+
+  /**
+   * Tool Sensors detect when tools have been picked up or dropped.
+   * Requires the pins TOOL_SENSOR1_PIN, TOOL_SENSOR2_PIN, etc.
+   */
+  //#define TOOL_SENSOR
+
+  /**
+   * Retract and prime filament on tool-change to reduce
+   * ooze and stringing and to get cleaner transitions.
+   */
+  //#define TOOLCHANGE_FILAMENT_SWAP
+  #if ENABLED(TOOLCHANGE_FILAMENT_SWAP)
+    // Load / Unload
+    #define TOOLCHANGE_FS_LENGTH              12  // (mm) Load / Unload length
+    #define TOOLCHANGE_FS_EXTRA_RESUME_LENGTH  0  // (mm) Extra length for better restart. Adjust with LCD or M217 B.
+    #define TOOLCHANGE_FS_RETRACT_SPEED   (50*60) // (mm/min) (Unloading)
+    #define TOOLCHANGE_FS_UNRETRACT_SPEED (25*60) // (mm/min) (On SINGLENOZZLE or Bowden loading must be slowed down)
+
+    // Longer prime to clean out a SINGLENOZZLE
+    #define TOOLCHANGE_FS_EXTRA_PRIME          0  // (mm) Extra priming length
+    #define TOOLCHANGE_FS_PRIME_SPEED    (4.6*60) // (mm/min) Extra priming feedrate
+    #define TOOLCHANGE_FS_WIPE_RETRACT         0  // (mm) Cutting retraction out of park, for less stringing, better wipe, etc. Adjust with LCD or M217 G.
+
+    // Cool after prime to reduce stringing
+    #define TOOLCHANGE_FS_FAN                 -1  // Fan index or -1 to skip
+    #define TOOLCHANGE_FS_FAN_SPEED          255  // 0-255
+    #define TOOLCHANGE_FS_FAN_TIME            10  // (seconds)
+
+    // Use TOOLCHANGE_FS_PRIME_SPEED feedrate the first time each extruder is primed
+    //#define TOOLCHANGE_FS_SLOW_FIRST_PRIME
+
+    /**
+     * Prime T0 the first time T0 is sent to the printer:
+     *  [ Power-On -> T0 { Activate & Prime T0 } -> T1 { Retract T0, Activate & Prime T1 } ]
+     * If disabled, no priming on T0 until switching back to T0 from another extruder:
+     *  [ Power-On -> T0 { T0 Activated } -> T1 { Activate & Prime T1 } -> T0 { Retract T1, Activate & Prime T0 } ]
+     * Enable with M217 V1 before printing to avoid unwanted priming on host connect.
+     */
+    //#define TOOLCHANGE_FS_PRIME_FIRST_USED
+
+    /**
+     * Tool Change Migration
+     * This feature provides G-code and LCD options to switch tools mid-print.
+     * All applicable tool properties are migrated so the print can continue.
+     * Tools must be closely matching and other restrictions may apply.
+     * Useful to:
+     *   - Change filament color without interruption
+     *   - Switch spools automatically on filament runout
+     *   - Switch to a different nozzle on an extruder jam
+     */
+    #define TOOLCHANGE_MIGRATION_FEATURE
+    #if ENABLED(TOOLCHANGE_MIGRATION_FEATURE)
+      // Override toolchange settings
+      // By default tool migration uses regular toolchange settings.
+      // With a prime tower, tool-change swapping/priming occur inside the bed.
+      // When migrating to a new unprimed tool you can set override values below.
+      //#define MIGRATION_ZRAISE            0 // (mm)
+
+      // Longer prime to clean out
+      //#define MIGRATION_FS_EXTRA_PRIME    0 // (mm) Extra priming length
+      //#define MIGRATION_FS_WIPE_RETRACT   0 // (mm) Retract before cooling for less stringing, better wipe, etc.
+
+      // Cool after prime to reduce stringing
+      //#define MIGRATION_FS_FAN_SPEED    255 // 0-255
+      //#define MIGRATION_FS_FAN_TIME       0 // (seconds)
+    #endif
+  #endif
+
+  /**
+   * Position to park head during tool change.
+   * Doesn't apply to SWITCHING_TOOLHEAD, DUAL_X_CARRIAGE, or PARKING_EXTRUDER
+   */
+  //#define TOOLCHANGE_PARK
+  #if ENABLED(TOOLCHANGE_PARK)
+    #define TOOLCHANGE_PARK_XY    { X_MIN_POS + 10, Y_MIN_POS + 10 }
+    #define TOOLCHANGE_PARK_XY_FEEDRATE 6000  // (mm/min)
+    //#define TOOLCHANGE_PARK_X_ONLY          // X axis only move
+    //#define TOOLCHANGE_PARK_Y_ONLY          // Y axis only move
+    #if ENABLED(TOOLCHANGE_MIGRATION_FEATURE)
+      //#define TOOLCHANGE_MIGRATION_DO_PARK  // Force park (or no-park) on migration
+    #endif
+  #endif
+#endif // HAS_MULTI_EXTRUDER
+
+// @section advanced pause
+
+/**
+ * Advanced Pause for Filament Change
+ *  - Adds the G-code M600 Filament Change to initiate a filament change.
+ *  - This feature is required for the default FILAMENT_RUNOUT_SCRIPT.
+ *
+ * Requirements:
+ *  - For Filament Change parking enable and configure NOZZLE_PARK_FEATURE.
+ *  - For user interaction enable an LCD display, HOST_PROMPT_SUPPORT, or EMERGENCY_PARSER.
+ *
+ * Enable PARK_HEAD_ON_PAUSE to add the G-code M125 Pause and Park.
+ */
+#define ADVANCED_PAUSE_FEATURE
+#if ENABLED(ADVANCED_PAUSE_FEATURE)
+  #define PAUSE_PARK_RETRACT_FEEDRATE         10  // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH            2  // (mm) Initial retract.
+                                                  // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE      5  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_ACCEL        20  // (mm/s^2) Lower acceleration may allow a faster feedrate.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH       50  // (mm) The length of filament for a complete unload.
+                                                  //   For Bowden, the full length of the tube and nozzle.
+                                                  //   For direct drive, the full length of the nozzle.
+                                                  //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_SLOW_LOAD_FEEDRATE   5  // (mm/s) Slow move when starting load.
+  #define FILAMENT_CHANGE_SLOW_LOAD_LENGTH     0  // (mm) Slow length, to allow time to insert material.
+                                                  // 0 to disable start loading and skip to fast load only
+  #define FILAMENT_CHANGE_FAST_LOAD_FEEDRATE   5  // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_FAST_LOAD_ACCEL     25  // (mm/s^2) Lower acceleration may allow a faster feedrate.
+  #define FILAMENT_CHANGE_FAST_LOAD_LENGTH     0  // (mm) Load length of filament, from extruder gear to nozzle.
+                                                  //   For Bowden, the full length of the tube and nozzle.
+                                                  //   For direct drive, the full length of the nozzle.
+  //#define ADVANCED_PAUSE_CONTINUOUS_PURGE       // Purge continuously up to the purge length until interrupted.
+  #define ADVANCED_PAUSE_PURGE_FEEDRATE        2  // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_PURGE_LENGTH         40  // (mm) Length to extrude after loading.
+                                                  //   Set to 0 for manual extrusion.
+                                                  //   Filament can be extruded repeatedly from the Filament Change menu
+                                                  //   until extrusion is consistent, and to purge old filament.
+  #define ADVANCED_PAUSE_RESUME_PRIME          0  // (mm) Extra distance to prime nozzle after returning from park.
+  //#define ADVANCED_PAUSE_FANS_PAUSE             // Turn off print-cooling fans while the machine is paused.
+
+                                                  // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_PURGE_RETRACT       10  // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_PURGE_DELAY       5000  // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH         6  // (mm) An unretract is done, then this length is purged.
+  #define FILAMENT_UNLOAD_PURGE_FEEDRATE      14  // (mm/s) feedrate to purge before unload
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT           60  // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS         10  // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT           // Enable for XYZ steppers to stay powered on during filament change.
+  //#define FILAMENT_CHANGE_RESUME_ON_INSERT      // Automatically continue / load filament when runout sensor is triggered again.
+  //#define PAUSE_REHEAT_FAST_RESUME              // Reduce number of waits by not prompting again post-timeout before continuing.
+
+  #define PARK_HEAD_ON_PAUSE                      // Park the nozzle during pause and filament change.
+  //#define HOME_BEFORE_FILAMENT_CHANGE           // If needed, home before parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES           // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS         // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
+  #define CONFIGURE_FILAMENT_CHANGE               // Add M603 G-code and menu items. Requires ~1.3K bytes of flash.
+#endif
+
+// @section tmc_smart
+
+/**
+ * Trinamic Smart Drivers
+ *
+ * To use TMC2130, TMC2160, TMC2660, TMC5130, TMC5160 stepper drivers in SPI mode:
+ *  - Connect your SPI pins to the Hardware SPI interface on the board.
+ *    Some boards have simple jumper connections! See your board's documentation.
+ *  - Define the required Stepper CS pins in your `pins_MYBOARD.h` file.
+ *    (See the RAMPS pins, for example.)
+ *  - You can also use Software SPI with GPIO pins instead of Hardware SPI.
+ *
+ * To use TMC220x stepper drivers with Serial UART:
+ *  - Connect PDN_UART to the #_SERIAL_TX_PIN through a 1K resistor.
+ *    For reading capabilities also connect PDN_UART to #_SERIAL_RX_PIN with no resistor.
+ *    Some boards have simple jumper connections! See your board's documentation.
+ *  - These drivers can also be used with Hardware Serial.
+ *
+ * The TMCStepper library is required for other TMC stepper drivers.
+ *   https://github.com/teemuatlut/TMCStepper
+ *
+ * @section tmc/config
+ */
+#if HAS_TRINAMIC_CONFIG
+
+  #define HOLD_MULTIPLIER    0.5  // Scales down the holding current from run current
+
+  /**
+   * Interpolate microsteps to 256
+   * Override for each driver with <driver>_INTERPOLATE settings below
+   */
+  #define INTERPOLATE      true
+
+  #if AXIS_IS_TMC_CONFIG(X)
+    #define X_CURRENT       860        // (mA) RMS current. Multiply by 1.414 for peak current.
+    #define X_CURRENT_HOME  (X_CURRENT - 20) // (mA) RMS current for homing. (Typically lower than *_CURRENT.)
+    #define X_MICROSTEPS     16        // 0..256
+    #define X_RSENSE          0.15
+    #define X_CHAIN_POS      -1        // -1..0: Not chained. 1: MCU MOSI connected. 2: Next in chain, ...
+    //#define X_INTERPOLATE  true      // Enable to override 'INTERPOLATE' for the X axis
+    //#define X_HOLD_MULTIPLIER 0.5    // Enable to override 'HOLD_MULTIPLIER' for the X axis
+  #endif
+
+  #if AXIS_IS_TMC_CONFIG(X2)
+    #define X2_CURRENT      X_CURRENT
+    #define X2_CURRENT_HOME X_CURRENT_HOME
+    #define X2_MICROSTEPS   X_MICROSTEPS
+    #define X2_RSENSE       X_RSENSE
+    #define X2_CHAIN_POS     -1
+    //#define X2_INTERPOLATE true
+    //#define X2_HOLD_MULTIPLIER 0.5
+  #endif
+
+  #if AXIS_IS_TMC_CONFIG(Y)
+    #define Y_CURRENT       900
+    #define Y_CURRENT_HOME  (Y_CURRENT - 20)
+    #define Y_MICROSTEPS     16
+    #define Y_RSENSE          0.15
+    #define Y_CHAIN_POS      -1
+    //#define Y_INTERPOLATE  true
+    //#define Y_HOLD_MULTIPLIER 0.5
+  #endif
+
+  #if AXIS_IS_TMC_CONFIG(Y2)
+    #define Y2_CURRENT      Y_CURRENT
+    #define Y2_CURRENT_HOME Y_CURRENT_HOME
+    #define Y2_MICROSTEPS   Y_MICROSTEPS
+    #define Y2_RSENSE       Y_RSENSE
+    #define Y2_CHAIN_POS     -1
+    //#define Y2_INTERPOLATE true
+    //#define Y2_HOLD_MULTIPLIER 0.5
+  #endif
+
+  #if AXIS_IS_TMC_CONFIG(Z)
+    #define Z_CURRENT       800
+    #define Z_CURRENT_HOME  (Z_CURRENT - 20)
+    #define Z_MICROSTEPS     16
+    #define Z_RSENSE          0.15
+    #define Z_CHAIN_POS      -1
+    //#define Z_INTERPOLATE true
+    //#define Z_HOLD_MULTIPLIER 0.5
+  #endif
+
+  #if AXIS_IS_TMC_CONFIG(Z2)
+    #define Z2_CURRENT      Z_CURRENT
+    #define Z2_CURRENT_HOME Z_CURRENT_HOME
+    #define Z2_MICROSTEPS   Z_MICROSTEPS
+    #define Z2_RSENSE       Z_RSENSE
+    #define Z2_CHAIN_POS     -1
+    //#define Z2_INTERPOLATE true
+    //#define Z2_HOLD_MULTIPLIER 0.5
+  #endif
+
+  #if AXIS_IS_TMC_CONFIG(Z3)
+    #define Z3_CURRENT      Z_CURRENT
+    #define Z3_CURRENT_HOME Z_CURRENT_HOME
+    #define Z3_MICROSTEPS   Z_MICROSTEPS
+    #define Z3_RSENSE       Z_RSENSE
+    #define Z3_CHAIN_POS     -1
+    //#define Z3_INTERPOLATE true
+    //#define Z3_HOLD_MULTIPLIER 0.5
+  #endif
+
+  #if AXIS_IS_TMC_CONFIG(Z4)
+    #define Z4_CURRENT      Z_CURRENT
+    #define Z4_CURRENT_HOME Z_CURRENT_HOME
+    #define Z4_MICROSTEPS   Z_MICROSTEPS
+    #define Z4_RSENSE       Z_RSENSE
+    #define Z4_CHAIN_POS     -1
+    //#define Z4_INTERPOLATE true
+    //#define Z4_HOLD_MULTIPLIER 0.5
+  #endif
+
+  #if AXIS_IS_TMC_CONFIG(I)
+    #define I_CURRENT      800
+    #define I_CURRENT_HOME I_CURRENT
+    #define I_MICROSTEPS    16
+    #define I_RSENSE         0.11
+    #define I_CHAIN_POS     -1
+    //#define I_INTERPOLATE  true
+    //#define I_HOLD_MULTIPLIER 0.5
+  #endif
+
+  #if AXIS_IS_TMC_CONFIG(J)
+    #define J_CURRENT      800
+    #define J_CURRENT_HOME J_CURRENT
+    #define J_MICROSTEPS    16
+    #define J_RSENSE         0.11
+    #define J_CHAIN_POS     -1
+    //#define J_INTERPOLATE  true
+    //#define J_HOLD_MULTIPLIER 0.5
+  #endif
+
+  #if AXIS_IS_TMC_CONFIG(K)
+    #define K_CURRENT      800
+    #define K_CURRENT_HOME K_CURRENT
+    #define K_MICROSTEPS    16
+    #define K_RSENSE         0.11
+    #define K_CHAIN_POS     -1
+    //#define K_INTERPOLATE  true
+    //#define K_HOLD_MULTIPLIER 0.5
+  #endif
+
+  #if AXIS_IS_TMC_CONFIG(U)
+    #define U_CURRENT      800
+    #define U_CURRENT_HOME U_CURRENT
+    #define U_MICROSTEPS     8
+    #define U_RSENSE         0.11
+    #define U_CHAIN_POS     -1
+    //#define U_INTERPOLATE  true
+    //#define U_HOLD_MULTIPLIER 0.5
+  #endif
+
+  #if AXIS_IS_TMC_CONFIG(V)
+    #define V_CURRENT      800
+    #define V_CURRENT_HOME V_CURRENT
+    #define V_MICROSTEPS     8
+    #define V_RSENSE         0.11
+    #define V_CHAIN_POS     -1
+    //#define V_INTERPOLATE  true
+    //#define V_HOLD_MULTIPLIER 0.5
+  #endif
+
+  #if AXIS_IS_TMC_CONFIG(W)
+    #define W_CURRENT      800
+    #define W_CURRENT_HOME W_CURRENT
+    #define W_MICROSTEPS     8
+    #define W_RSENSE         0.11
+    #define W_CHAIN_POS     -1
+    //#define W_INTERPOLATE  true
+    //#define W_HOLD_MULTIPLIER 0.5
+  #endif
+
+  #if AXIS_IS_TMC_CONFIG(E0)
+    #define E0_CURRENT      550
+    #define E0_MICROSTEPS    16
+    #define E0_RSENSE         0.15
+    #define E0_CHAIN_POS     -1
+    //#define E0_INTERPOLATE true
+    //#define E0_HOLD_MULTIPLIER 0.5
+  #endif
+
+  #if AXIS_IS_TMC_CONFIG(E1)
+    #define E1_CURRENT      E0_CURRENT
+    #define E1_MICROSTEPS   E0_MICROSTEPS
+    #define E1_RSENSE       E0_RSENSE
+    #define E1_CHAIN_POS     -1
+    //#define E1_INTERPOLATE true
+    //#define E1_HOLD_MULTIPLIER 0.5
+  #endif
+
+  #if AXIS_IS_TMC_CONFIG(E2)
+    #define E2_CURRENT      E0_CURRENT
+    #define E2_MICROSTEPS   E0_MICROSTEPS
+    #define E2_RSENSE       E0_RSENSE
+    #define E2_CHAIN_POS     -1
+    //#define E2_INTERPOLATE true
+    //#define E2_HOLD_MULTIPLIER 0.5
+  #endif
+
+  #if AXIS_IS_TMC_CONFIG(E3)
+    #define E3_CURRENT      E0_CURRENT
+    #define E3_MICROSTEPS   E0_MICROSTEPS
+    #define E3_RSENSE       E0_RSENSE
+    #define E3_CHAIN_POS     -1
+    //#define E3_INTERPOLATE true
+    //#define E3_HOLD_MULTIPLIER 0.5
+  #endif
+
+  #if AXIS_IS_TMC_CONFIG(E4)
+    #define E4_CURRENT      E0_CURRENT
+    #define E4_MICROSTEPS   E0_MICROSTEPS
+    #define E4_RSENSE       E0_RSENSE
+    #define E4_CHAIN_POS     -1
+    //#define E4_INTERPOLATE true
+    //#define E4_HOLD_MULTIPLIER 0.5
+  #endif
+
+  #if AXIS_IS_TMC_CONFIG(E5)
+    #define E5_CURRENT      E0_CURRENT
+    #define E5_MICROSTEPS   E0_MICROSTEPS
+    #define E5_RSENSE       E0_RSENSE
+    #define E5_CHAIN_POS     -1
+    //#define E5_INTERPOLATE true
+    //#define E5_HOLD_MULTIPLIER 0.5
+  #endif
+
+  #if AXIS_IS_TMC_CONFIG(E6)
+    #define E6_CURRENT      E0_CURRENT
+    #define E6_MICROSTEPS   E0_MICROSTEPS
+    #define E6_RSENSE       E0_RSENSE
+    #define E6_CHAIN_POS     -1
+    //#define E6_INTERPOLATE true
+    //#define E6_HOLD_MULTIPLIER 0.5
+  #endif
+
+  #if AXIS_IS_TMC_CONFIG(E7)
+    #define E7_CURRENT      E0_CURRENT
+    #define E7_MICROSTEPS   E0_MICROSTEPS
+    #define E7_RSENSE       E0_RSENSE
+    #define E7_CHAIN_POS     -1
+    //#define E7_INTERPOLATE true
+    //#define E7_HOLD_MULTIPLIER 0.5
+  #endif
+
+  /**
+   * Use the homing current for all probing. (e.g., Current may be reduced to the
+   * point where a collision makes the motor skip instead of damaging the bed,
+   * though this is unlikely to save delicate probes from being damaged.
+   */
+  //#define PROBING_USE_CURRENT_HOME
+
+  // @section tmc/spi
+
+  /**
+   * Override default SPI pins for TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160 drivers here.
+   * The default pins can be found in your board's pins file.
+   */
+  //#define X_CS_PIN      -1
+  //#define Y_CS_PIN      -1
+  //#define Z_CS_PIN      -1
+  //#define X2_CS_PIN     -1
+  //#define Y2_CS_PIN     -1
+  //#define Z2_CS_PIN     -1
+  //#define Z3_CS_PIN     -1
+  //#define Z4_CS_PIN     -1
+  //#define I_CS_PIN      -1
+  //#define J_CS_PIN      -1
+  //#define K_CS_PIN      -1
+  //#define U_CS_PIN      -1
+  //#define V_CS_PIN      -1
+  //#define W_CS_PIN      -1
+  //#define E0_CS_PIN     -1
+  //#define E1_CS_PIN     -1
+  //#define E2_CS_PIN     -1
+  //#define E3_CS_PIN     -1
+  //#define E4_CS_PIN     -1
+  //#define E5_CS_PIN     -1
+  //#define E6_CS_PIN     -1
+  //#define E7_CS_PIN     -1
+
+  /**
+   * Software option for SPI driven drivers (TMC2130, TMC2160, TMC2660, TMC5130 and TMC5160).
+   * The default SW SPI pins are defined the respective pins files,
+   * but you can override or define them here.
+   */
+  //#define TMC_USE_SW_SPI
+  //#define TMC_SPI_MOSI  -1
+  //#define TMC_SPI_MISO  -1
+  //#define TMC_SPI_SCK   -1
+
+  // @section tmc/serial
+
+  /**
+   * Four TMC2209 drivers can use the same HW/SW serial port with hardware configured addresses.
+   * Set the address using jumpers on pins MS1 and MS2.
+   * Address | MS1  | MS2
+   *       0 | LOW  | LOW
+   *       1 | HIGH | LOW
+   *       2 | LOW  | HIGH
+   *       3 | HIGH | HIGH
+   *
+   * Set *_SERIAL_TX_PIN and *_SERIAL_RX_PIN to match for all drivers
+   * on the same serial port, either here or in your board's pins file.
+   */
+  #define  X_SLAVE_ADDRESS 3
+  #define  Y_SLAVE_ADDRESS 3
+  #define  Z_SLAVE_ADDRESS 3
+  //#define X2_SLAVE_ADDRESS 0
+  //#define Y2_SLAVE_ADDRESS 0
+  //#define Z2_SLAVE_ADDRESS 0
+  //#define Z3_SLAVE_ADDRESS 0
+  //#define Z4_SLAVE_ADDRESS 0
+  //#define  I_SLAVE_ADDRESS 0
+  //#define  J_SLAVE_ADDRESS 0
+  //#define  K_SLAVE_ADDRESS 0
+  //#define  U_SLAVE_ADDRESS 0
+  //#define  V_SLAVE_ADDRESS 0
+  //#define  W_SLAVE_ADDRESS 0
+  #define E0_SLAVE_ADDRESS 3
+  //#define E1_SLAVE_ADDRESS 0
+  //#define E2_SLAVE_ADDRESS 0
+  //#define E3_SLAVE_ADDRESS 0
+  //#define E4_SLAVE_ADDRESS 0
+  //#define E5_SLAVE_ADDRESS 0
+  //#define E6_SLAVE_ADDRESS 0
+  //#define E7_SLAVE_ADDRESS 0
+
+  // @section tmc/smart
+
+  /**
+   * Software enable
+   *
+   * Use for drivers that do not use a dedicated enable pin, but rather handle the same
+   * function through a communication line such as SPI or UART.
+   */
+  //#define SOFTWARE_DRIVER_ENABLE
+
+  // @section tmc/stealthchop
+
+  /**
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
+   * Use Trinamic's ultra quiet stepping mode.
+   * When disabled, Marlin will use spreadCycle stepping mode.
+   */
+  #if HAS_STEALTHCHOP
+    #define STEALTHCHOP_XY
+    #define STEALTHCHOP_Z
+    #define STEALTHCHOP_I
+    #define STEALTHCHOP_J
+    #define STEALTHCHOP_K
+    #define STEALTHCHOP_U
+    #define STEALTHCHOP_V
+    #define STEALTHCHOP_W
+    #define STEALTHCHOP_E
+  #endif
+
+  /**
+   * Optimize spreadCycle chopper parameters by using predefined parameter sets
+   * or with the help of an example included in the library.
+   * Provided parameter sets are
+   * CHOPPER_DEFAULT_12V
+   * CHOPPER_DEFAULT_19V
+   * CHOPPER_DEFAULT_24V
+   * CHOPPER_DEFAULT_36V
+   * CHOPPER_09STEP_24V   // 0.9 degree steppers (24V)
+   * CHOPPER_PRUSAMK3_24V // Imported parameters from the official Průša firmware for MK3 (24V)
+   * CHOPPER_MARLIN_119   // Old defaults from Marlin v1.1.9
+   *
+   * Define your own with:
+   * { <off_time[1..15]>, <hysteresis_end[-3..12]>, hysteresis_start[1..8] }
+   */
+  #define CHOPPER_TIMING CHOPPER_DEFAULT_24V        // All axes (override below)
+  //#define CHOPPER_TIMING_X  CHOPPER_TIMING        // For X Axes (override below)
+  //#define CHOPPER_TIMING_X2 CHOPPER_TIMING_X
+  //#define CHOPPER_TIMING_Y  CHOPPER_TIMING        // For Y Axes (override below)
+  //#define CHOPPER_TIMING_Y2 CHOPPER_TIMING_Y
+  //#define CHOPPER_TIMING_Z  CHOPPER_TIMING        // For Z Axes (override below)
+  //#define CHOPPER_TIMING_Z2 CHOPPER_TIMING_Z
+  //#define CHOPPER_TIMING_Z3 CHOPPER_TIMING_Z
+  //#define CHOPPER_TIMING_Z4 CHOPPER_TIMING_Z
+  //#define CHOPPER_TIMING_I  CHOPPER_TIMING        // For I Axis
+  //#define CHOPPER_TIMING_J  CHOPPER_TIMING        // For J Axis
+  //#define CHOPPER_TIMING_K  CHOPPER_TIMING        // For K Axis
+  //#define CHOPPER_TIMING_U  CHOPPER_TIMING        // For U Axis
+  //#define CHOPPER_TIMING_V  CHOPPER_TIMING        // For V Axis
+  //#define CHOPPER_TIMING_W  CHOPPER_TIMING        // For W Axis
+  //#define CHOPPER_TIMING_E  CHOPPER_TIMING        // For Extruders (override below)
+  //#define CHOPPER_TIMING_E1 CHOPPER_TIMING_E
+  //#define CHOPPER_TIMING_E2 CHOPPER_TIMING_E
+  //#define CHOPPER_TIMING_E3 CHOPPER_TIMING_E
+  //#define CHOPPER_TIMING_E4 CHOPPER_TIMING_E
+  //#define CHOPPER_TIMING_E5 CHOPPER_TIMING_E
+  //#define CHOPPER_TIMING_E6 CHOPPER_TIMING_E
+  //#define CHOPPER_TIMING_E7 CHOPPER_TIMING_E
+
+  // @section tmc/status
+
+  /**
+   * Monitor Trinamic drivers
+   * for error conditions like overtemperature and short to ground.
+   * To manage over-temp Marlin can decrease the driver current until the error condition clears.
+   * Other detected conditions can be used to stop the current print.
+   * Relevant G-codes:
+   * M906 - Set or get motor current in milliamps using axis codes X, Y, Z, E. Report values if no axis codes given.
+   * M911 - Report stepper driver overtemperature pre-warn condition.
+   * M912 - Clear stepper driver overtemperature pre-warn condition flag.
+   * M122 - Report driver parameters (Requires TMC_DEBUG)
+   */
+  #define MONITOR_DRIVER_STATUS
+
+  #if ENABLED(MONITOR_DRIVER_STATUS)
+    #define CURRENT_STEP_DOWN     50  // [mA]
+    #define REPORT_CURRENT_CHANGE
+    #define STOP_ON_ERROR
+  #endif
+
+  // @section tmc/hybrid
+
+  /**
+   * TMC2130, TMC2160, TMC2208, TMC2209, TMC5130 and TMC5160 only
+   * The driver will switch to spreadCycle when stepper speed is over HYBRID_THRESHOLD.
+   * This mode allows for faster movements at the expense of higher noise levels.
+   * STEALTHCHOP_(XY|Z|E) must be enabled to use HYBRID_THRESHOLD.
+   * M913 X/Y/Z/E to live tune the setting
+   */
+  #define HYBRID_THRESHOLD
+
+  #define X_HYBRID_THRESHOLD     180  // [mm/s]
+  #define X2_HYBRID_THRESHOLD    150
+  #define Y_HYBRID_THRESHOLD     180
+  #define Y2_HYBRID_THRESHOLD    150
+  #define Z_HYBRID_THRESHOLD      40
+  #define Z2_HYBRID_THRESHOLD      3
+  #define Z3_HYBRID_THRESHOLD      3
+  #define Z4_HYBRID_THRESHOLD      3
+  #define I_HYBRID_THRESHOLD       3  // [linear=mm/s, rotational=°/s]
+  #define J_HYBRID_THRESHOLD       3  // [linear=mm/s, rotational=°/s]
+  #define K_HYBRID_THRESHOLD       3  // [linear=mm/s, rotational=°/s]
+  #define U_HYBRID_THRESHOLD       3  // [mm/s]
+  #define V_HYBRID_THRESHOLD       3
+  #define W_HYBRID_THRESHOLD       3
+  #define E0_HYBRID_THRESHOLD     60
+  #define E1_HYBRID_THRESHOLD     30
+  #define E2_HYBRID_THRESHOLD     30
+  #define E3_HYBRID_THRESHOLD     30
+  #define E4_HYBRID_THRESHOLD     30
+  #define E5_HYBRID_THRESHOLD     30
+  #define E6_HYBRID_THRESHOLD     30
+  #define E7_HYBRID_THRESHOLD     30
+
+  /**
+   * Use StallGuard to home / probe X, Y, Z.
+   *
+   * TMC2130, TMC2160, TMC2209, TMC2660, TMC5130, and TMC5160 only
+   * Connect the stepper driver's DIAG1 pin to the X/Y endstop pin.
+   * X, Y, and Z homing will always be done in spreadCycle mode.
+   *
+   * X/Y/Z_STALL_SENSITIVITY is the default stall threshold.
+   * Use M914 X Y Z to set the stall threshold at runtime:
+   *
+   *  Sensitivity   TMC2209   Others
+   *    HIGHEST       255      -64    (Too sensitive => False positive)
+   *    LOWEST         0        63    (Too insensitive => No trigger)
+   *
+   * It is recommended to set HOMING_BUMP_MM to { 0, 0, 0 }.
+   *
+   * SPI_ENDSTOPS  *** TMC2130/TMC5160 Only ***
+   * Poll the driver through SPI to determine load when homing.
+   * Removes the need for a wire from DIAG1 to an endstop pin.
+   *
+   * IMPROVE_HOMING_RELIABILITY tunes acceleration and jerk when
+   * homing and adds a guard period for endstop triggering.
+   *
+   * Comment *_STALL_SENSITIVITY to disable sensorless homing for that axis.
+   * @section tmc/stallguard
+   */
+  #define SENSORLESS_HOMING   // StallGuard capable drivers only
+
+  #if ANY(SENSORLESS_HOMING, SENSORLESS_PROBING)
+    // TMC2209: 0...255. TMC2130: -64...63
+    #define X_STALL_SENSITIVITY 68
+    #define X2_STALL_SENSITIVITY X_STALL_SENSITIVITY
+    #define Y_STALL_SENSITIVITY 70
+    #define Y2_STALL_SENSITIVITY Y_STALL_SENSITIVITY
+    //#define Z_STALL_SENSITIVITY  8
+    //#define Z2_STALL_SENSITIVITY Z_STALL_SENSITIVITY
+    //#define Z3_STALL_SENSITIVITY Z_STALL_SENSITIVITY
+    //#define Z4_STALL_SENSITIVITY Z_STALL_SENSITIVITY
+    //#define I_STALL_SENSITIVITY  8
+    //#define J_STALL_SENSITIVITY  8
+    //#define K_STALL_SENSITIVITY  8
+    //#define U_STALL_SENSITIVITY  8
+    //#define V_STALL_SENSITIVITY  8
+    //#define W_STALL_SENSITIVITY  8
+    //#define SPI_ENDSTOPS              // TMC2130/TMC5160 only
+    //#define IMPROVE_HOMING_RELIABILITY
+  #endif
+
+  // @section tmc/config
+
+  /**
+   * TMC Homing stepper phase.
+   *
+   * Improve homing repeatability by homing to stepper coil's nearest absolute
+   * phase position. Trinamic drivers use a stepper phase table with 1024 values
+   * spanning 4 full steps with 256 positions each (ergo, 1024 positions).
+   * Full step positions (128, 384, 640, 896) have the highest holding torque.
+   *
+   * Values from 0..1023, -1 to disable homing phase for that axis.
+   */
+   //#define TMC_HOME_PHASE { 896, 896, 896 }
+
+  /**
+   * Step on both rising and falling edge signals (as with a square wave).
+   */
+  #define EDGE_STEPPING
+
+  /**
+   * Enable M122 debugging command for TMC stepper drivers.
+   * M122 S0/1 will enable continuous reporting.
+   */
+  #define TMC_DEBUG
+
+  /**
+   * You can set your own advanced settings by filling in predefined functions.
+   * A list of available functions can be found on the library github page
+   * https://github.com/teemuatlut/TMCStepper
+   *
+   * Example:
+   * #define TMC_ADV() { \
+   *   stepperX.diag0_otpw(1); \
+   *   stepperY.intpol(0); \
+   * }
+   */
+  #define TMC_ADV() {  }
+
+#endif // HAS_TRINAMIC_CONFIG
+
+// @section i2cbus
+
+//
+// I2C Master ID for LPC176x LCD and Digital Current control
+// Does not apply to other peripherals based on the Wire library.
+//
+//#define I2C_MASTER_ID  1  // Set a value from 0 to 2
+
+/**
+ * TWI/I2C BUS
+ *
+ * This feature is EXPERIMENTAL but may be useful for custom I2C peripherals.
+ * Enable this to send and receive I2C data from slave devices on the bus.
+ *
+ * ; Example #1
+ * ; This macro send the string "Marlin" to the slave device with address 0x63 (99)
+ * ; It uses multiple M260 commands with one B<base 10> arg
+ * M260 A99  ; Target slave address
+ * M260 B77  ; M
+ * M260 B97  ; a
+ * M260 B114 ; r
+ * M260 B108 ; l
+ * M260 B105 ; i
+ * M260 B110 ; n
+ * M260 S1   ; Send the current buffer
+ *
+ * ; Example #2
+ * ; Request 6 bytes from slave device with address 0x63 (99)
+ * M261 A99 B5
+ *
+ * ; Example #3
+ * ; Example serial output of a M261 request
+ * echo:i2c-reply: from:99 bytes:5 data:hello
+ */
+
+//#define EXPERIMENTAL_I2CBUS
+#if ENABLED(EXPERIMENTAL_I2CBUS)
+  #define I2C_SLAVE_ADDRESS  0  // Set a value from 8 to 127 to act as a slave
+#endif
+
+// @section photo
+
+/**
+ * Photo G-code
+ * Add the M240 G-code to take a photo.
+ * The photo can be triggered by a digital pin or a physical movement.
+ */
+//#define PHOTO_GCODE
+#if ENABLED(PHOTO_GCODE)
+  // A position to move to (and raise Z) before taking the photo
+  //#define PHOTO_POSITION { X_MAX_POS - 5, Y_MAX_POS, 0 }  // { xpos, ypos, zraise } (M240 X Y Z)
+  //#define PHOTO_DELAY_MS   100                            // (ms) Duration to pause before moving back (M240 P)
+  //#define PHOTO_RETRACT_MM   6.5                          // (mm) E retract/recover for the photo move (M240 R S)
+
+  // Canon RC-1 or homebrew digital camera trigger
+  // Data from: https://www.doc-diy.net/photo/rc-1_hacked/
+  //#define PHOTOGRAPH_PIN 23
+
+  // Canon Hack Development Kit
+  // https://web.archive.org/web/20200920094805/captain-slow.dk/2014/03/09/3d-printing-timelapses/
+  //#define CHDK_PIN        4
+
+  // Optional second move with delay to trigger the camera shutter
+  //#define PHOTO_SWITCH_POSITION { X_MAX_POS, Y_MAX_POS }  // { xpos, ypos } (M240 I J)
+
+  // Duration to hold the switch or keep CHDK_PIN high
+  //#define PHOTO_SWITCH_MS   50 // (ms) (M240 D)
+
+  /**
+   * PHOTO_PULSES_US may need adjustment depending on board and camera model.
+   * Pin must be running at 48.4kHz.
+   * Be sure to use a PHOTOGRAPH_PIN which can rise and fall quick enough.
+   * (e.g., MKS SBase temp sensor pin was too slow, so used P1.23 on J8.)
+   *
+   *  Example pulse data for Nikon: https://bit.ly/2FKD0Aq
+   *                     IR Wiring: https://git.io/JvJf7
+   */
+  //#define PHOTO_PULSES_US { 2000, 27850, 400, 1580, 400, 3580, 400 }  // (µs) Durations for each 48.4kHz oscillation
+  #ifdef PHOTO_PULSES_US
+    #define PHOTO_PULSE_DELAY_US 13 // (µs) Approximate duration of each HIGH and LOW pulse in the oscillation
+  #endif
+#endif
+
+// @section cnc
+
+/**
+ * Spindle & Laser control
+ *
+ * Add the M3, M4, and M5 commands to turn the spindle/laser on and off, and
+ * to set spindle speed, spindle direction, and laser power.
+ *
+ * SuperPID is a router/spindle speed controller used in the CNC milling community.
+ * Marlin can be used to turn the spindle on and off. It can also be used to set
+ * the spindle speed from 5,000 to 30,000 RPM.
+ *
+ * You'll need to select a pin for the ON/OFF function and optionally choose a 0-5V
+ * hardware PWM pin for the speed control and a pin for the rotation direction.
+ *
+ * See https://marlinfw.org/docs/configuration/2.0.9/laser_spindle.html for more config details.
+ */
+//#define SPINDLE_FEATURE
+//#define LASER_FEATURE
+#if ANY(SPINDLE_FEATURE, LASER_FEATURE)
+  #define SPINDLE_LASER_ACTIVE_STATE    LOW    // Set to "HIGH" if SPINDLE_LASER_ENA_PIN is active HIGH
+
+  #define SPINDLE_LASER_USE_PWM                // Enable if your controller supports setting the speed/power
+  #if ENABLED(SPINDLE_LASER_USE_PWM)
+    #define SPINDLE_LASER_PWM_INVERT    false  // Set to "true" if the speed/power goes up when you want it to go slower
+    #define SPINDLE_LASER_FREQUENCY     2500   // (Hz) Spindle/laser frequency (only on supported HALs: AVR, ESP32, and LPC)
+                                               // ESP32: If SPINDLE_LASER_PWM_PIN is onboard then <=78125Hz. For I2S expander
+                                               //  the frequency determines the PWM resolution. 2500Hz = 0-100, 977Hz = 0-255, ...
+                                               //  (250000 / SPINDLE_LASER_FREQUENCY) = max value.
+  #endif
+
+  //#define AIR_EVACUATION                     // Cutter Vacuum / Laser Blower motor control with G-codes M10-M11
+  #if ENABLED(AIR_EVACUATION)
+    #define AIR_EVACUATION_ACTIVE       LOW    // Set to "HIGH" if the on/off function is active HIGH
+    //#define AIR_EVACUATION_PIN        42     // Override the default Cutter Vacuum or Laser Blower pin
+  #endif
+
+  //#define AIR_ASSIST                         // Air Assist control with G-codes M8-M9
+  #if ENABLED(AIR_ASSIST)
+    #define AIR_ASSIST_ACTIVE           LOW    // Active state on air assist pin
+    //#define AIR_ASSIST_PIN            44     // Override the default Air Assist pin
+  #endif
+
+  //#define SPINDLE_SERVO                      // A servo converting an angle to spindle power
+  #ifdef SPINDLE_SERVO
+    #define SPINDLE_SERVO_NR   0               // Index of servo used for spindle control
+    #define SPINDLE_SERVO_MIN 10               // Minimum angle for servo spindle
+  #endif
+
+  /**
+   * Speed / Power can be set ('M3 S') and displayed in terms of:
+   *  - PWM255  (S0 - S255)
+   *  - PERCENT (S0 - S100)
+   *  - RPM     (S0 - S50000)  Best for use with a spindle
+   *  - SERVO   (S0 - S180)
+   */
+  #define CUTTER_POWER_UNIT PWM255
+
+  /**
+   * Relative Cutter Power
+   * Normally, 'M3 O<power>' sets
+   * OCR power is relative to the range SPEED_POWER_MIN...SPEED_POWER_MAX.
+   * so input powers of 0...255 correspond to SPEED_POWER_MIN...SPEED_POWER_MAX
+   * instead of normal range (0 to SPEED_POWER_MAX).
+   * Best used with (e.g.) SuperPID router controller: S0 = 5,000 RPM and S255 = 30,000 RPM
+   */
+  //#define CUTTER_POWER_RELATIVE              // Set speed proportional to [SPEED_POWER_MIN...SPEED_POWER_MAX]
+
+  #if ENABLED(SPINDLE_FEATURE)
+    //#define SPINDLE_CHANGE_DIR               // Enable if your spindle controller can change spindle direction
+    #define SPINDLE_CHANGE_DIR_STOP            // Enable if the spindle should stop before changing spin direction
+    #define SPINDLE_INVERT_DIR          false  // Set to "true" if the spin direction is reversed
+
+    #define SPINDLE_LASER_POWERUP_DELAY   5000 // (ms) Delay to allow the spindle/laser to come up to speed/power
+    #define SPINDLE_LASER_POWERDOWN_DELAY 5000 // (ms) Delay to allow the spindle to stop
+
+    /**
+     * M3/M4 Power Equation
+     *
+     * Each tool uses different value ranges for speed / power control.
+     * These parameters are used to convert between tool power units and PWM.
+     *
+     * Speed/Power = (PWMDC / 255 * 100 - SPEED_POWER_INTERCEPT) / SPEED_POWER_SLOPE
+     * PWMDC = (spdpwr - SPEED_POWER_MIN) / (SPEED_POWER_MAX - SPEED_POWER_MIN) / SPEED_POWER_SLOPE
+     */
+    #if ENABLED(SPINDLE_LASER_USE_PWM)
+      #define SPEED_POWER_INTERCEPT       0    // (%) 0-100 i.e., Minimum power percentage
+      #define SPEED_POWER_MIN          5000    // (RPM)
+      #define SPEED_POWER_MAX         30000    // (RPM) SuperPID router controller 0 - 30,000 RPM
+      #define SPEED_POWER_STARTUP     25000    // (RPM) M3/M4 speed/power default (with no arguments)
+    #endif
+
+  #else
+
+    #if ENABLED(SPINDLE_LASER_USE_PWM)
+      #define SPEED_POWER_INTERCEPT       0    // (%) 0-100 i.e., Minimum power percentage
+      #define SPEED_POWER_MIN             0    // (%) 0-100
+      #define SPEED_POWER_MAX           100    // (%) 0-100
+      #define SPEED_POWER_STARTUP        80    // (%) M3/M4 speed/power default (with no arguments)
+    #endif
+
+    // Define the minimum and maximum test pulse time values for a laser test fire function
+    #define LASER_TEST_PULSE_MIN           1   // (ms) Used with Laser Control Menu
+    #define LASER_TEST_PULSE_MAX         999   // (ms) Caution: Menu may not show more than 3 characters
+
+    #define SPINDLE_LASER_POWERUP_DELAY   50   // (ms) Delay to allow the spindle/laser to come up to speed/power
+    #define SPINDLE_LASER_POWERDOWN_DELAY 50   // (ms) Delay to allow the spindle to stop
+
+   /**
+    * Laser Safety Timeout
+    *
+    * The laser should be turned off when there is no movement for a period of time.
+    * Consider material flammability, cut rate, and G-code order when setting this
+    * value. Too low and it could turn off during a very slow move; too high and
+    * the material could ignite.
+    */
+    #define LASER_SAFETY_TIMEOUT_MS     1000   // (ms)
+
+    /**
+     * Any M3 or G1/2/3/5 command with the 'I' parameter enables continuous inline power mode.
+     *
+     * e.g., 'M3 I' enables continuous inline power which is processed by the planner.
+     * Power is stored in move blocks and applied when blocks are processed by the Stepper ISR.
+     *
+     * 'M4 I' sets dynamic mode which uses the current feedrate to calculate a laser power OCR value.
+     *
+     * Any move in dynamic mode will use the current feedrate to calculate the laser power.
+     * Feed rates are set by the F parameter of a move command e.g. G1 X0 Y10 F6000
+     * Laser power would be calculated by bit shifting off 8 LSB's. In binary this is div 256.
+     * The calculation gives us ocr values from 0 to 255, values over F65535 will be set as 255 .
+     * More refined power control such as compensation for accel/decel will be addressed in future releases.
+     *
+     * M5 I clears inline mode and set power to 0, M5 sets the power output to 0 but leaves inline mode on.
+     */
+
+    /**
+     * Enable M3 commands for laser mode inline power planner syncing.
+     * This feature enables any M3 S-value to be injected into the block buffers while in
+     * CUTTER_MODE_CONTINUOUS. The option allows M3 laser power to be committed without waiting
+     * for a planner synchronization
+     */
+    //#define LASER_POWER_SYNC
+
+    /**
+     * Scale the laser's power in proportion to the movement rate.
+     *
+     * - Sets the entry power proportional to the entry speed over the nominal speed.
+     * - Ramps the power up every N steps to approximate the speed trapezoid.
+     * - Due to the limited power resolution this is only approximate.
+     */
+    //#define LASER_POWER_TRAP
+
+    //
+    // Laser I2C Ammeter (High precision INA226 low/high side module)
+    //
+    //#define I2C_AMMETER
+    #if ENABLED(I2C_AMMETER)
+      #define I2C_AMMETER_IMAX            0.1    // (Amps) Calibration value for the expected current range
+      #define I2C_AMMETER_SHUNT_RESISTOR  0.1    // (Ohms) Calibration shunt resistor value
+    #endif
+
+    //
+    // Laser Coolant Flow Meter
+    //
+    //#define LASER_COOLANT_FLOW_METER
+    #if ENABLED(LASER_COOLANT_FLOW_METER)
+      #define FLOWMETER_PIN         20  // Requires an external interrupt-enabled pin (e.g., RAMPS 2,3,18,19,20,21)
+      #define FLOWMETER_PPL       5880  // (pulses/liter) Flow meter pulses-per-liter on the input pin
+      #define FLOWMETER_INTERVAL  1000  // (ms) Flow rate calculation interval in milliseconds
+      #define FLOWMETER_SAFETY          // Prevent running the laser without the minimum flow rate set below
+      #if ENABLED(FLOWMETER_SAFETY)
+        #define FLOWMETER_MIN_LITERS_PER_MINUTE 1.5 // (liters/min) Minimum flow required when enabled
+      #endif
+    #endif
+
+  #endif
+#endif // SPINDLE_FEATURE || LASER_FEATURE
+
+/**
+ * Synchronous Laser Control with M106/M107
+ *
+ * Marlin normally applies M106/M107 fan speeds at a time "soon after" processing
+ * a planner block. This is too inaccurate for a PWM/TTL laser attached to the fan
+ * header (as with some add-on laser kits). Enable this option to set fan/laser
+ * speeds with much more exact timing for improved print fidelity.
+ *
+ * NOTE: This option sacrifices some cooling fan speed options.
+ */
+//#define LASER_SYNCHRONOUS_M106_M107
+
+/**
+ * Coolant Control
+ *
+ * Add the M7, M8, and M9 commands to turn mist or flood coolant on and off.
+ *
+ * Note: COOLANT_MIST_PIN and/or COOLANT_FLOOD_PIN must also be defined.
+ */
+//#define COOLANT_CONTROL
+#if ENABLED(COOLANT_CONTROL)
+  #define COOLANT_MIST                // Enable if mist coolant is present
+  #define COOLANT_FLOOD               // Enable if flood coolant is present
+  #define COOLANT_MIST_INVERT  false  // Set "true" if the on/off function is reversed
+  #define COOLANT_FLOOD_INVERT false  // Set "true" if the on/off function is reversed
+#endif
+
+// @section filament width
+
+/**
+ * Filament Width Sensor
+ *
+ * Measures the filament width in real-time and adjusts
+ * flow rate to compensate for any irregularities.
+ *
+ * Also allows the measured filament diameter to set the
+ * extrusion rate, so the slicer only has to specify the
+ * volume.
+ *
+ * Only a single extruder is supported at this time.
+ *
+ *  34 RAMPS_14    : Analog input 5 on the AUX2 connector
+ *  81 PRINTRBOARD : Analog input 2 on the Exp1 connector (version B,C,D,E)
+ * 301 RAMBO       : Analog input 3
+ *
+ * Note: May require analog pins to be defined for other boards.
+ */
+//#define FILAMENT_WIDTH_SENSOR
+
+#if ENABLED(FILAMENT_WIDTH_SENSOR)
+  #define FILAMENT_SENSOR_EXTRUDER_NUM 0    // Index of the extruder that has the filament sensor. :[0,1,2,3,4]
+  #define MEASUREMENT_DELAY_CM        14    // (cm) The distance from the filament sensor to the melting chamber
+
+  #define FILWIDTH_ERROR_MARGIN        1.0  // (mm) If a measurement differs too much from nominal width ignore it
+  #define MAX_MEASUREMENT_DELAY       20    // (bytes) Buffer size for stored measurements (1 byte per cm). Must be larger than MEASUREMENT_DELAY_CM.
+
+  #define DEFAULT_MEASURED_FILAMENT_DIA DEFAULT_NOMINAL_FILAMENT_DIA // Set measured to nominal initially
+
+  // Display filament width on the LCD status line. Status messages will expire after 5 seconds.
+  //#define FILAMENT_LCD_DISPLAY
+#endif
+
+// @section power
+
+/**
+ * Power Monitor
+ * Monitor voltage (V) and/or current (A), and -when possible- power (W)
+ *
+ * Read and configure with M430
+ *
+ * The current sensor feeds DC voltage (relative to the measured current) to an analog pin
+ * The voltage sensor feeds DC voltage (relative to the measured voltage) to an analog pin
+ */
+//#define POWER_MONITOR_CURRENT   // Monitor the system current
+//#define POWER_MONITOR_VOLTAGE   // Monitor the system voltage
+
+#if ENABLED(POWER_MONITOR_CURRENT)
+  #define POWER_MONITOR_VOLTS_PER_AMP    0.05000  // Input voltage to the MCU analog pin per amp  - DO NOT apply more than ADC_VREF!
+  #define POWER_MONITOR_CURRENT_OFFSET   0        // Offset (in amps) applied to the calculated current
+  #define POWER_MONITOR_FIXED_VOLTAGE   13.6      // Voltage for a current sensor with no voltage sensor (for power display)
+#endif
+
+#if ENABLED(POWER_MONITOR_VOLTAGE)
+  #define POWER_MONITOR_VOLTS_PER_VOLT  0.077933  // Input voltage to the MCU analog pin per volt - DO NOT apply more than ADC_VREF!
+  #define POWER_MONITOR_VOLTAGE_OFFSET  0         // Offset (in volts) applied to the calculated voltage
+#endif
+
+// @section safety
+
+/**
+ * Stepper Driver Anti-SNAFU Protection
+ *
+ * If the SAFE_POWER_PIN is defined for your board, Marlin will check
+ * that stepper drivers are properly plugged in before applying power.
+ * Disable protection if your stepper drivers don't support the feature.
+ */
+//#define DISABLE_DRIVER_SAFE_POWER_PROTECT
+
+// @section cnc
+
+/**
+ * CNC Coordinate Systems
+ *
+ * Enables G53 and G54-G59.3 commands to select coordinate systems
+ * and G92.1 to reset the workspace to native machine space.
+ */
+//#define CNC_COORDINATE_SYSTEMS
+
+/**
+ * CNC Drilling Cycle - UNDER DEVELOPMENT
+ *
+ * Enables G81 to perform a drilling cycle.
+ * Currently only supports a single cycle, no G-code chaining.
+ */
+//#define CNC_DRILLING_CYCLE
+
+// @section security
+
+/**
+ * Expected Printer Check
+ * Add the M16 G-code to compare a string to the MACHINE_NAME.
+ * M16 with a non-matching string causes the printer to halt.
+ */
+//#define EXPECTED_PRINTER_CHECK
+
+// @section volumetrics
+
+/**
+ * Disable all Volumetric extrusion options
+ */
+//#define NO_VOLUMETRICS
+
+#if DISABLED(NO_VOLUMETRICS)
+  /**
+   * Volumetric extrusion default state
+   * Activate to make volumetric extrusion the default method,
+   * with DEFAULT_NOMINAL_FILAMENT_DIA as the default diameter.
+   *
+   * M200 D0 to disable, M200 Dn to set a new diameter (and enable volumetric).
+   * M200 S0/S1 to disable/enable volumetric extrusion.
+   */
+  //#define VOLUMETRIC_DEFAULT_ON
+
+  //#define VOLUMETRIC_EXTRUDER_LIMIT
+  #if ENABLED(VOLUMETRIC_EXTRUDER_LIMIT)
+    /**
+     * Default volumetric extrusion limit in cubic mm per second (mm^3/sec).
+     * This factory setting applies to all extruders.
+     * Use 'M200 [T<extruder>] L<limit>' to override and 'M502' to reset.
+     * A non-zero value activates Volume-based Extrusion Limiting.
+     */
+    #define DEFAULT_VOLUMETRIC_EXTRUDER_LIMIT  0.00     // (mm^3/sec)
+    #define VOLUMETRIC_EXTRUDER_LIMIT_MAX     20        // (mm^3/sec)
+  #endif
+#endif
+
+// @section reporting
+
+/**
+ * Extra options for the M114 "Current Position" report
+ */
+//#define M114_DETAIL         // Use 'M114` for details to check planner calculations
+//#define M114_REALTIME       // Real current position based on forward kinematics
+//#define M114_LEGACY         // M114 used to synchronize on every call. Enable if needed.
+
+/**
+ * Auto-report fan speed with M123 S<seconds>
+ * Requires fans with tachometer pins
+ */
+//#define AUTO_REPORT_FANS
+
+//#define REPORT_FAN_CHANGE   // Report the new fan speed when changed by M106 (and others)
+
+/**
+ * Auto-report temperatures with M155 S<seconds>
+ */
+#define AUTO_REPORT_TEMPERATURES
+#if ENABLED(AUTO_REPORT_TEMPERATURES) && TEMP_SENSOR_REDUNDANT
+  //#define AUTO_REPORT_REDUNDANT // Include the "R" sensor in the auto-report
+#endif
+
+/**
+ * Auto-report position with M154 S<seconds>
+ */
+//#define AUTO_REPORT_POSITION
+#if ENABLED(AUTO_REPORT_POSITION)
+  //#define AUTO_REPORT_REAL_POSITION // Auto-report the real position
+#endif
+
+/**
+ * M115 - Report capabilites. Disable to save ~1150 bytes of flash.
+ *        Some hosts (and serial TFT displays) rely on this feature.
+ */
+#define CAPABILITIES_REPORT
+#if ENABLED(CAPABILITIES_REPORT)
+  // Include capabilities in M115 output
+  #define EXTENDED_CAPABILITIES_REPORT
+  #if ENABLED(EXTENDED_CAPABILITIES_REPORT)
+    //#define M115_GEOMETRY_REPORT
+  #endif
+#endif
+
+// @section gcode
+
+/**
+ * Spend 28 bytes of SRAM to optimize the G-code parser
+ */
+#define FASTER_GCODE_PARSER
+
+#if ENABLED(FASTER_GCODE_PARSER)
+  //#define GCODE_QUOTED_STRINGS  // Support for quoted string parameters
+#endif
+
+/**
+ * Variables
+ *
+ * Define a variable from 100-115 with G-code like '#101=19.6'.
+ * A variable can then be used in a G-code expression like 'G0 X[#101+3]'.
+ * See https://gcodetutor.com/cnc-macro-programming/cnc-variables.html
+ */
+//#define GCODE_VARIABLES
+
+/**
+ * Support for MeatPack G-code compression (https://github.com/scottmudge/OctoPrint-MeatPack)
+ */
+//#define MEATPACK_ON_SERIAL_PORT_1
+//#define MEATPACK_ON_SERIAL_PORT_2
+
+//#define GCODE_CASE_INSENSITIVE  // Accept G-code sent to the firmware in lowercase
+
+//#define REPETIER_GCODE_M360     // Add commands originally from Repetier FW
+
+/**
+ * Enable M111 debug flags 1=ECHO, 2=INFO, 4=ERRORS (unimplemented).
+ * Disable to save some flash. Some hosts (Repetier Host) may rely on this feature.
+ */
+#define DEBUG_FLAGS_GCODE
+
+/**
+ * Enable this option for a leaner build of Marlin that removes
+ * workspace offsets to slightly optimize performance.
+ * G92 will revert to its behavior from Marlin 1.0.
+ */
+//#define NO_WORKSPACE_OFFSETS
+
+/**
+ * Disable M206 and M428 if you don't need home offsets.
+ */
+//#define NO_HOME_OFFSETS
+
+/**
+ * CNC G-code options
+ * Support CNC-style G-code dialects used by laser cutters, drawing machine cams, etc.
+ * Note that G0 feedrates should be used with care for 3D printing (if used at all).
+ * High feedrates may cause ringing and harm print quality.
+ */
+//#define PAREN_COMMENTS      // Support for parentheses-delimited comments
+//#define GCODE_MOTION_MODES  // Remember the motion mode (G0 G1 G2 G3 G5 G38.X) and apply for X Y Z E F, etc.
+
+// Enable and set a (default) feedrate for all G0 moves
+//#define G0_FEEDRATE 3000 // (mm/min)
+#ifdef G0_FEEDRATE
+  //#define VARIABLE_G0_FEEDRATE // The G0 feedrate is set by F in G0 motion mode
+#endif
+//#define G0_ANGULAR_FEEDRATE 2700 // (°/min)
+
+/**
+ * Startup commands
+ *
+ * Execute certain G-code commands immediately after power-on.
+ */
+#define STARTUP_COMMANDS "M420 S1"
+
+/**
+ * G-code Macros
+ *
+ * Add G-codes M810-M819 to define and run G-code macros.
+ * Macros are not saved to EEPROM.
+ */
+//#define GCODE_MACROS
+#if ENABLED(GCODE_MACROS)
+  #define GCODE_MACROS_SLOTS       5  // Up to 10 may be used
+  #define GCODE_MACROS_SLOT_SIZE  50  // Maximum length of a single macro
+#endif
+
+/**
+ * User-defined menu items to run custom G-code.
+ * Up to 25 may be defined, but the actual number is LCD-dependent.
+ */
+
+// @section custom main menu
+
+// Custom Menu: Main Menu
+//#define CUSTOM_MENU_MAIN
+#if ENABLED(CUSTOM_MENU_MAIN)
+  //#define CUSTOM_MENU_MAIN_TITLE "Custom Commands"
+  #define CUSTOM_MENU_MAIN_SCRIPT_DONE "M117 User Script Done"
+  #define CUSTOM_MENU_MAIN_SCRIPT_AUDIBLE_FEEDBACK
+  //#define CUSTOM_MENU_MAIN_SCRIPT_RETURN   // Return to status screen after a script
+  #define CUSTOM_MENU_MAIN_ONLY_IDLE         // Only show custom menu when the machine is idle
+
+  #define MAIN_MENU_ITEM_1_DESC "Home & UBL Info"
+  #define MAIN_MENU_ITEM_1_GCODE "G28\nG29 W"
+  //#define MAIN_MENU_ITEM_1_CONFIRM          // Show a confirmation dialog before this action
+
+  #define MAIN_MENU_ITEM_2_DESC "Preheat for " PREHEAT_1_LABEL
+  #define MAIN_MENU_ITEM_2_GCODE "M140 S" STRINGIFY(PREHEAT_1_TEMP_BED) "\nM104 S" STRINGIFY(PREHEAT_1_TEMP_HOTEND)
+  //#define MAIN_MENU_ITEM_2_CONFIRM
+
+  //#define MAIN_MENU_ITEM_3_DESC "Preheat for " PREHEAT_2_LABEL
+  //#define MAIN_MENU_ITEM_3_GCODE "M140 S" STRINGIFY(PREHEAT_2_TEMP_BED) "\nM104 S" STRINGIFY(PREHEAT_2_TEMP_HOTEND)
+  //#define MAIN_MENU_ITEM_3_CONFIRM
+
+  //#define MAIN_MENU_ITEM_4_DESC "Heat Bed/Home/Level"
+  //#define MAIN_MENU_ITEM_4_GCODE "M140 S" STRINGIFY(PREHEAT_2_TEMP_BED) "\nG28\nG29"
+  //#define MAIN_MENU_ITEM_4_CONFIRM
+
+  //#define MAIN_MENU_ITEM_5_DESC "Home & Info"
+  //#define MAIN_MENU_ITEM_5_GCODE "G28\nM503"
+  //#define MAIN_MENU_ITEM_5_CONFIRM
+#endif
+
+// @section custom config menu
+
+// Custom Menu: Configuration Menu
+//#define CUSTOM_MENU_CONFIG
+#if ENABLED(CUSTOM_MENU_CONFIG)
+  //#define CUSTOM_MENU_CONFIG_TITLE "Custom Commands"
+  #define CUSTOM_MENU_CONFIG_SCRIPT_DONE "M117 Wireless Script Done"
+  #define CUSTOM_MENU_CONFIG_SCRIPT_AUDIBLE_FEEDBACK
+  //#define CUSTOM_MENU_CONFIG_SCRIPT_RETURN  // Return to status screen after a script
+  #define CUSTOM_MENU_CONFIG_ONLY_IDLE        // Only show custom menu when the machine is idle
+
+  #define CONFIG_MENU_ITEM_1_DESC "Wifi ON"
+  #define CONFIG_MENU_ITEM_1_GCODE "M118 [ESP110] WIFI-STA pwd=12345678"
+  //#define CONFIG_MENU_ITEM_1_CONFIRM        // Show a confirmation dialog before this action
+
+  #define CONFIG_MENU_ITEM_2_DESC "Bluetooth ON"
+  #define CONFIG_MENU_ITEM_2_GCODE "M118 [ESP110] BT pwd=12345678"
+  //#define CONFIG_MENU_ITEM_2_CONFIRM
+
+  //#define CONFIG_MENU_ITEM_3_DESC "Radio OFF"
+  //#define CONFIG_MENU_ITEM_3_GCODE "M118 [ESP110] OFF pwd=12345678"
+  //#define CONFIG_MENU_ITEM_3_CONFIRM
+
+  //#define CONFIG_MENU_ITEM_4_DESC "Wifi ????"
+  //#define CONFIG_MENU_ITEM_4_GCODE "M118 ????"
+  //#define CONFIG_MENU_ITEM_4_CONFIRM
+
+  //#define CONFIG_MENU_ITEM_5_DESC "Wifi ????"
+  //#define CONFIG_MENU_ITEM_5_GCODE "M118 ????"
+  //#define CONFIG_MENU_ITEM_5_CONFIRM
+#endif
+
+// @section custom buttons
+
+/**
+ * User-defined buttons to run custom G-code.
+ * Up to 25 may be defined.
+ */
+//#define CUSTOM_USER_BUTTONS
+#if ENABLED(CUSTOM_USER_BUTTONS)
+  //#define BUTTON1_PIN -1
+  #if PIN_EXISTS(BUTTON1)
+    #define BUTTON1_HIT_STATE     LOW       // State of the triggered button. NC=LOW. NO=HIGH.
+    #define BUTTON1_WHEN_PRINTING false     // Button allowed to trigger during printing?
+    #define BUTTON1_GCODE         "G28"
+    #define BUTTON1_DESC          "Homing"  // Optional string to set the LCD status
+  #endif
+
+  //#define BUTTON2_PIN -1
+  #if PIN_EXISTS(BUTTON2)
+    #define BUTTON2_HIT_STATE     LOW
+    #define BUTTON2_WHEN_PRINTING false
+    #define BUTTON2_GCODE         "M140 S" STRINGIFY(PREHEAT_1_TEMP_BED) "\nM104 S" STRINGIFY(PREHEAT_1_TEMP_HOTEND)
+    #define BUTTON2_DESC          "Preheat for " PREHEAT_1_LABEL
+  #endif
+
+  //#define BUTTON3_PIN -1
+  #if PIN_EXISTS(BUTTON3)
+    #define BUTTON3_HIT_STATE     LOW
+    #define BUTTON3_WHEN_PRINTING false
+    #define BUTTON3_GCODE         "M140 S" STRINGIFY(PREHEAT_2_TEMP_BED) "\nM104 S" STRINGIFY(PREHEAT_2_TEMP_HOTEND)
+    #define BUTTON3_DESC          "Preheat for " PREHEAT_2_LABEL
+  #endif
+#endif
+
+// @section host
+
+/**
+ * Host Action Commands
+ *
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
+ */
+#define HOST_ACTION_COMMANDS
+#if ENABLED(HOST_ACTION_COMMANDS)
+  //#define HOST_PAUSE_M76                // Tell the host to pause in response to M76
+  //#define HOST_PROMPT_SUPPORT           // Initiate host prompts to get user feedback
+  #if ENABLED(HOST_PROMPT_SUPPORT)
+    //#define HOST_STATUS_NOTIFICATIONS   // Send some status messages to the host as notifications
+  #endif
+  //#define HOST_START_MENU_ITEM          // Add a menu item that tells the host to start
+  //#define HOST_SHUTDOWN_MENU_ITEM       // Add a menu item that tells the host to shut down
+#endif
+
+// @section extras
+
+/**
+ * Cancel Objects
+ *
+ * Implement M486 to allow Marlin to skip objects
+ */
+//#define CANCEL_OBJECTS
+#if ENABLED(CANCEL_OBJECTS)
+  #define CANCEL_OBJECTS_REPORTING // Emit the current object as a status message
+#endif
+
+/**
+ * I2C position encoders for closed loop control.
+ * Developed by Chris Barr at Aus3D.
+ *
+ * Wiki: https://wiki.aus3d.com.au/Magnetic_Encoder
+ * Github: https://github.com/Aus3D/MagneticEncoder
+ *
+ * Supplier: https://aus3d.com.au/products/magnetic-encoder-module
+ * Alternative Supplier: https://reliabuild3d.com/
+ *
+ * Reliabuild encoders have been modified to improve reliability.
+ * @section i2c encoders
+ */
+
+//#define I2C_POSITION_ENCODERS
+#if ENABLED(I2C_POSITION_ENCODERS)
+
+  #define I2CPE_ENCODER_CNT         1                       // The number of encoders installed; max of 5
+                                                            // encoders supported currently.
+
+  #define I2CPE_ENC_1_ADDR          I2CPE_PRESET_ADDR_X     // I2C address of the encoder. 30-200.
+  #define I2CPE_ENC_1_AXIS          X_AXIS                  // Axis the encoder module is installed on.  <X|Y|Z|E>_AXIS.
+  #define I2CPE_ENC_1_TYPE          I2CPE_ENC_TYPE_LINEAR   // Type of encoder:  I2CPE_ENC_TYPE_LINEAR -or-
+                                                            // I2CPE_ENC_TYPE_ROTARY.
+  #define I2CPE_ENC_1_TICKS_UNIT    2048                    // 1024 for magnetic strips with 2mm poles; 2048 for
+                                                            // 1mm poles. For linear encoders this is ticks / mm,
+                                                            // for rotary encoders this is ticks / revolution.
+  //#define I2CPE_ENC_1_TICKS_REV     (16 * 200)            // Only needed for rotary encoders; number of stepper
+                                                            // steps per full revolution (motor steps/rev * microstepping)
+  //#define I2CPE_ENC_1_INVERT                              // Invert the direction of axis travel.
+  #define I2CPE_ENC_1_EC_METHOD     I2CPE_ECM_MICROSTEP     // Type of error error correction.
+  #define I2CPE_ENC_1_EC_THRESH     0.10                    // Threshold size for error (in mm) above which the
+                                                            // printer will attempt to correct the error; errors
+                                                            // smaller than this are ignored to minimize effects of
+                                                            // measurement noise / latency (filter).
+
+  #define I2CPE_ENC_2_ADDR          I2CPE_PRESET_ADDR_Y     // Same as above, but for encoder 2.
+  #define I2CPE_ENC_2_AXIS          Y_AXIS
+  #define I2CPE_ENC_2_TYPE          I2CPE_ENC_TYPE_LINEAR
+  #define I2CPE_ENC_2_TICKS_UNIT    2048
+  //#define I2CPE_ENC_2_TICKS_REV   (16 * 200)
+  //#define I2CPE_ENC_2_INVERT
+  #define I2CPE_ENC_2_EC_METHOD     I2CPE_ECM_MICROSTEP
+  #define I2CPE_ENC_2_EC_THRESH     0.10
+
+  #define I2CPE_ENC_3_ADDR          I2CPE_PRESET_ADDR_Z     // Encoder 3.  Add additional configuration options
+  #define I2CPE_ENC_3_AXIS          Z_AXIS                  // as above, or use defaults below.
+
+  #define I2CPE_ENC_4_ADDR          I2CPE_PRESET_ADDR_E     // Encoder 4.
+  #define I2CPE_ENC_4_AXIS          E_AXIS
+
+  #define I2CPE_ENC_5_ADDR          34                      // Encoder 5.
+  #define I2CPE_ENC_5_AXIS          E_AXIS
+
+  // Default settings for encoders which are enabled, but without settings configured above.
+  #define I2CPE_DEF_TYPE            I2CPE_ENC_TYPE_LINEAR
+  #define I2CPE_DEF_ENC_TICKS_UNIT  2048
+  #define I2CPE_DEF_TICKS_REV       (16 * 200)
+  #define I2CPE_DEF_EC_METHOD       I2CPE_ECM_NONE
+  #define I2CPE_DEF_EC_THRESH       0.1
+
+  //#define I2CPE_ERR_THRESH_ABORT  100.0                   // Threshold size for error (in mm) error on any given
+                                                            // axis after which the printer will abort. Comment out to
+                                                            // disable abort behavior.
+
+  #define I2CPE_TIME_TRUSTED        10000                   // After an encoder fault, there must be no further fault
+                                                            // for this amount of time (in ms) before the encoder
+                                                            // is trusted again.
+
+  /**
+   * Position is checked every time a new command is executed from the buffer but during long moves,
+   * this setting determines the minimum update time between checks. A value of 100 works well with
+   * error rolling average when attempting to correct only for skips and not for vibration.
+   */
+  #define I2CPE_MIN_UPD_TIME_MS     4                       // (ms) Minimum time between encoder checks.
+
+  // Use a rolling average to identify persistent errors that indicate skips, as opposed to vibration and noise.
+  #define I2CPE_ERR_ROLLING_AVERAGE
+
+#endif // I2C_POSITION_ENCODERS
+
+/**
+ * Analog Joystick(s)
+ * @section joystick
+ */
+//#define JOYSTICK
+#if ENABLED(JOYSTICK)
+  #define JOY_X_PIN    5  // RAMPS: Suggested pin A5  on AUX2
+  #define JOY_Y_PIN   10  // RAMPS: Suggested pin A10 on AUX2
+  #define JOY_Z_PIN   12  // RAMPS: Suggested pin A12 on AUX2
+  #define JOY_EN_PIN  44  // RAMPS: Suggested pin D44 on AUX2
+
+  //#define INVERT_JOY_X  // Enable if X direction is reversed
+  //#define INVERT_JOY_Y  // Enable if Y direction is reversed
+  //#define INVERT_JOY_Z  // Enable if Z direction is reversed
+
+  // Use M119 with JOYSTICK_DEBUG to find reasonable values after connecting:
+  #define JOY_X_LIMITS { 5600, 8190-100, 8190+100, 10800 } // min, deadzone start, deadzone end, max
+  #define JOY_Y_LIMITS { 5600, 8250-100, 8250+100, 11000 }
+  #define JOY_Z_LIMITS { 4800, 8080-100, 8080+100, 11550 }
+  //#define JOYSTICK_DEBUG
+#endif
+
+/**
+ * Mechanical Gantry Calibration
+ * Modern replacement for the Průša TMC_Z_CALIBRATION.
+ * Adds capability to work with any adjustable current drivers.
+ * Implemented as G34 because M915 is deprecated.
+ * @section calibrate
+ */
+#define MECHANICAL_GANTRY_CALIBRATION
+#if ENABLED(MECHANICAL_GANTRY_CALIBRATION)
+  #define GANTRY_CALIBRATION_CURRENT          850     // Default calibration current in ma
+  #define GANTRY_CALIBRATION_EXTRA_HEIGHT      15     // Extra distance in mm past Z_###_POS to move
+  #define GANTRY_CALIBRATION_FEEDRATE         240     // Feedrate for correction move
+  //#define GANTRY_CALIBRATION_TO_MIN                 // Enable to calibrate Z in the MIN direction
+
+  #define GANTRY_CALIBRATION_SAFE_POSITION { X_CENTER + 3, Y_CENTER } // Safe position for nozzle
+  #define GANTRY_CALIBRATION_XY_PARK_FEEDRATE 3000    // XY Park Feedrate - MMM
+  //#define GANTRY_CALIBRATION_COMMANDS_PRE   ""
+  #define GANTRY_CALIBRATION_COMMANDS_POST  "G28 Z"   // G28 highly recommended to ensure an accurate position
+#endif
+
+/**
+ * Instant freeze / unfreeze functionality
+ * Potentially useful for rapid stop that allows being resumed. Halts stepper movement.
+ * Note this does NOT pause spindles, lasers, fans, heaters or any other auxiliary device.
+ * @section interface
+ */
+//#define FREEZE_FEATURE
+#if ENABLED(FREEZE_FEATURE)
+  //#define FREEZE_PIN 41   // Override the default (KILL) pin here
+  #define FREEZE_STATE LOW  // State of pin indicating freeze
+#endif
+
+/**
+ * MAX7219 Debug Matrix
+ *
+ * Add support for a low-cost 8x8 LED Matrix based on the Max7219 chip as a realtime status display.
+ * Requires 3 signal wires. Some useful debug options are included to demonstrate its usage.
+ * @section debug matrix
+ */
+//#define MAX7219_DEBUG
+#if ENABLED(MAX7219_DEBUG)
+  #define MAX7219_CLK_PIN   64
+  #define MAX7219_DIN_PIN   57
+  #define MAX7219_LOAD_PIN  44
+
+  //#define MAX7219_GCODE          // Add the M7219 G-code to control the LED matrix
+  #define MAX7219_INIT_TEST    2   // Test pattern at startup: 0=none, 1=sweep, 2=spiral
+  #define MAX7219_NUMBER_UNITS 1   // Number of Max7219 units in chain.
+  #define MAX7219_ROTATE       0   // Rotate the display clockwise (in multiples of +/- 90°)
+                                   // connector at:  right=0   bottom=-90  top=90  left=180
+  //#define MAX7219_REVERSE_ORDER  // The order of the LED matrix units may be reversed
+  //#define MAX7219_REVERSE_EACH   // The LEDs in each matrix unit row may be reversed
+  //#define MAX7219_SIDE_BY_SIDE   // Big chip+matrix boards can be chained side-by-side
+
+  /**
+   * Sample debug features
+   * If you add more debug displays, be careful to avoid conflicts!
+   */
+  #define MAX7219_DEBUG_PRINTER_ALIVE     // Blink corner LED of 8x8 matrix to show that the firmware is functioning
+  #define MAX7219_DEBUG_PLANNER_HEAD  2   // Show the planner queue head position on this and the next LED matrix row
+  #define MAX7219_DEBUG_PLANNER_TAIL  4   // Show the planner queue tail position on this and the next LED matrix row
+
+  #define MAX7219_DEBUG_PLANNER_QUEUE 0   // Show the current planner queue depth on this and the next LED matrix row
+                                          // If you experience stuttering, reboots, etc. this option can reveal how
+                                          // tweaks made to the configuration are affecting the printer in real-time.
+  #define MAX7219_DEBUG_PROFILE       6   // Display the fraction of CPU time spent in profiled code on this LED matrix
+                                          // row. By default idle() is profiled so this shows how "idle" the processor is.
+                                          // See class CodeProfiler.
+  //#define MAX7219_DEBUG_MULTISTEPPING 6 // Show multi-stepping 1 to 128 on this LED matrix row.
+  //#define MAX7219_DEBUG_SLOWDOWN      6 // Count (mod 16) how many times SLOWDOWN has reduced print speed.
+  //#define MAX7219_REINIT_ON_POWERUP     // Re-initialize MAX7129 when power supply turns on
+#endif
+
+/**
+ * NanoDLP Sync support
+ *
+ * Support for Synchronized Z moves when used with NanoDLP. G0/G1 axis moves will
+ * output a "Z_move_comp" string to enable synchronization with DLP projector exposure.
+ * This feature allows you to use [[WaitForDoneMessage]] instead of M400 commands.
+ * @section nanodlp
+ */
+//#define NANODLP_Z_SYNC
+#if ENABLED(NANODLP_Z_SYNC)
+  //#define NANODLP_ALL_AXIS  // Send a "Z_move_comp" report for any axis move (not just Z).
+#endif
+
+/**
+ * Ethernet. Use M552 to enable and set the IP address.
+ * @section network
+ */
+#if HAS_ETHERNET
+  #define MAC_ADDRESS { 0xDE, 0xAD, 0xBE, 0xEF, 0xF0, 0x0D }  // A MAC address unique to your network
+#endif
+
+/**
+ * Native ESP32 board with WiFi or add-on ESP32 WiFi-101 module
+ */
+//#define WIFISUPPORT         // Marlin embedded WiFi management. Not needed for simple WiFi serial port.
+//#define ESP3D_WIFISUPPORT   // ESP3D Library WiFi management (https://github.com/luc-github/ESP3DLib)
+
+/**
+ * Extras for an ESP32-based motherboard with WIFISUPPORT
+ * These options don't apply to add-on WiFi modules based on ESP32 WiFi101.
+ */
+#if ANY(WIFISUPPORT, ESP3D_WIFISUPPORT)
+  //#define WEBSUPPORT          // Start a webserver (which may include auto-discovery) using SPIFFS
+  //#define OTASUPPORT          // Support over-the-air firmware updates
+  //#define WIFI_CUSTOM_COMMAND // Accept feature config commands (e.g., WiFi ESP3D) from the host
+
+  /**
+   * To set a default WiFi SSID / Password, create a file called Configuration_Secure.h with
+   * the following defines, customized for your network. This specific file is excluded via
+   * .gitignore to prevent it from accidentally leaking to the public.
+   *
+   *   #define WIFI_SSID "WiFi SSID"
+   *   #define WIFI_PWD  "WiFi Password"
+   */
+  //#include "Configuration_Secure.h" // External file with WiFi SSID / Password
+#endif
+
+// @section multi-material
+
+/**
+ * Průša Multi-Material Unit (MMU)
+ * Enable in Configuration.h
+ *
+ * These devices allow a single stepper driver on the board to drive
+ * multi-material feeders with any number of stepper motors.
+ */
+#if HAS_PRUSA_MMU1
+  /**
+   * This option only allows the multiplexer to switch on tool-change.
+   * Additional options to configure custom E moves are pending.
+   *
+   * Override the default DIO selector pins here, if needed.
+   * Some pins files may provide defaults for these pins.
+   */
+  //#define E_MUX0_PIN 40  // Always Required
+  //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
+  //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
+  #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
+
+  // Use hardware reset for MMU if a pin is defined for it
+  //#define MMU2_RST_PIN 23
+
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
+
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
+
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
+
+  // Settings for filament load / unload from the LCD menu.
+  // This is for Průša MK3-style extruders. Customize for your hardware.
+  #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
+  #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
+
+  #define MMU2_RAMMING_SEQUENCE \
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
+
+  /**
+   * Using a sensor like the MMU2S
+   * This mode requires a MK3S extruder with a sensor at the extruder idler, like the MMU2S.
+   * See https://help.prusa3d.com/guide/3b-mk3s-mk2-5s-extruder-upgrade_41560#42048, step 11
+   */
+  #if HAS_PRUSA_MMU2S
+    #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
+
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
+    #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
+    #define MMU2_CAN_LOAD_SEQUENCE \
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
+
+    #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
+    #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
+
+    #define MMU2_CAN_LOAD_INCREMENT 0.2   // (mm) To reuse within MMU2 module
+    #define MMU2_CAN_LOAD_INCREMENT_SEQUENCE \
+      { -MMU2_CAN_LOAD_INCREMENT, MMU2_CAN_LOAD_FEEDRATE }
+
+    // Continue unloading if sensor detects filament after the initial unload move
+    //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
+  #else
+
+    /**
+     * MMU1 Extruder Sensor
+     *
+     * Support for a Průša (or other) IR Sensor to detect filament near the extruder
+     * and make loading more reliable. Suitable for an extruder equipped with a filament
+     * sensor less than 38mm from the gears.
+     *
+     * During loading the extruder will stop when the sensor is triggered, then do a last
+     * move up to the gears. If no filament is detected, the MMU2 can make some more attempts.
+     * If all attempts fail, a filament runout will be triggered.
+     */
+    //#define MMU_EXTRUDER_SENSOR
+    #if ENABLED(MMU_EXTRUDER_SENSOR)
+      #define MMU_LOADING_ATTEMPTS_NR 5 // max. number of attempts to load filament if first load fail
+    #endif
+
+  #endif
+
+  //#define MMU2_DEBUG  // Write debug info to serial output
+
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+
+/**
+ * Advanced Print Counter settings
+ * @section stats
+ */
+#if ENABLED(PRINTCOUNTER)
+  #define SERVICE_WARNING_BUZZES  3
+  // Activate up to 3 service interval watchdogs
+  //#define SERVICE_NAME_1      "Service S"
+  //#define SERVICE_INTERVAL_1  100 // print hours
+  //#define SERVICE_NAME_2      "Service L"
+  //#define SERVICE_INTERVAL_2  200 // print hours
+  //#define SERVICE_NAME_3      "Service 3"
+  //#define SERVICE_INTERVAL_3    1 // print hours
+#endif
+
+// @section develop
+
+//
+// M100 Free Memory Watcher to debug memory usage
+//
+//#define M100_FREE_MEMORY_WATCHER
+
+//
+// M42 - Set pin states
+//
+//#define DIRECT_PIN_CONTROL
+
+//
+// M43 - display pin status, toggle pins, watch pins, watch endstops & toggle LED, test servo probe
+//
+//#define PINS_DEBUGGING
+
+// Enable Tests that will run at startup and produce a report
+//#define MARLIN_TEST_BUILD
+
+// Enable Marlin dev mode which adds some special commands
+//#define MARLIN_DEV_MODE
+
+#if ENABLED(MARLIN_DEV_MODE)
+  /**
+   * D576 - Buffer Monitoring
+   * To help diagnose print quality issues stemming from empty command buffers.
+   */
+  //#define BUFFER_MONITORING
+#endif
+
+/**
+ * Postmortem Debugging captures misbehavior and outputs the CPU status and backtrace to serial.
+ * When running in the debugger it will break for debugging. This is useful to help understand
+ * a crash from a remote location. Requires ~400 bytes of SRAM and 5Kb of flash.
+ */
+//#define POSTMORTEM_DEBUGGING
+
+/**
+ * Software Reset options
+ */
+//#define SOFT_RESET_VIA_SERIAL         // 'KILL' and '^X' commands will soft-reset the controller
+//#define SOFT_RESET_ON_KILL            // Use a digital button to soft-reset the controller after KILL
+
+// Report uncleaned reset reason from register r2 instead of MCUSR. Supported by Optiboot on AVR.
+//#define OPTIBOOT_RESET_REASON
+
+// Shrink the build for smaller boards by sacrificing some serial feedback
+//#define MARLIN_SMALL_BUILD
diff --git a/config/examples/Sovol/SV-06/_Bootscreen.h b/config/examples/Sovol/SV-06/_Bootscreen.h
new file mode 100644
index 00000000000..575c944e890
--- /dev/null
+++ b/config/examples/Sovol/SV-06/_Bootscreen.h
@@ -0,0 +1,57 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2024 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Custom Boot Screen bitmap
+ *
+ * Place this file in the root with your configuration files
+ * and enable SHOW_CUSTOM_BOOTSCREEN in Configuration.h.
+ *
+ * Use the Marlin Bitmap Converter to make your own:
+ * https://marlinfw.org/tools/u8glib/converter.html
+ */
+
+#define CUSTOM_BOOTSCREEN_TIMEOUT 500
+#define CUSTOM_BOOTSCREEN_BMPWIDTH 64
+
+const unsigned char custom_start_bmp[] PROGMEM = {
+  B00011111,B00100000,B00000000,B00000000,B00000000,B00000000,B00000000,B00111100,
+  B00100000,B11100000,B00000000,B00000000,B00000000,B00000000,B00000000,B00001100,
+  B01000000,B01100000,B00000000,B00000000,B00000000,B00000000,B00000000,B00001100,
+  B10000000,B00100000,B00000000,B00000000,B00000000,B00000000,B00000000,B00001100,
+  B10000000,B00100000,B00000000,B00000000,B00000000,B00000000,B00000000,B00001100,
+  B11000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00001100,
+  B11100000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00001100,
+  B11111110,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00001100,
+  B01111111,B11000000,B00011111,B00001111,B11000011,B11000001,B11110000,B00001100,
+  B00111111,B11100000,B01100001,B10000011,B10000000,B00000110,B00011000,B00001100,
+  B00001111,B11110000,B11100000,B11000011,B10000001,B00001110,B00001100,B00001100,
+  B00000000,B11110000,B11100000,B11100001,B11000000,B00001110,B00001110,B00001100,
+  B00000000,B00110001,B11100000,B11100001,B11000010,B00011110,B00001110,B00001100,
+  B00000000,B00010001,B11100000,B11100000,B11100000,B00011110,B00001110,B00001100,
+  B00000000,B00010001,B11100000,B11100000,B11100100,B00011110,B00001110,B00001100,
+  B10000000,B00010001,B11100000,B11100000,B01110000,B00011110,B00001110,B00001100,
+  B10000000,B00010000,B11100000,B11100000,B01111000,B00001110,B00001110,B00001100,
+  B11000000,B00100000,B11100000,B11000000,B00110000,B00001110,B00001100,B00001100,
+  B11100000,B01000000,B01100001,B10000000,B00110000,B00000110,B00011000,B00001100,
+  B10011111,B10000000,B00011111,B00000000,B00000000,B00000001,B11110000,B00111111
+};
diff --git a/config/examples/Sovol/SV-06/_Statusscreen.h b/config/examples/Sovol/SV-06/_Statusscreen.h
new file mode 100644
index 00000000000..d27d29cf353
--- /dev/null
+++ b/config/examples/Sovol/SV-06/_Statusscreen.h
@@ -0,0 +1,70 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2024 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Custom Status Screen bitmap
+ *
+ * Place this file in the root with your configuration files
+ * and enable CUSTOM_STATUS_SCREEN_IMAGE in Configuration.h.
+ *
+ * Use the Marlin Bitmap Converter to make your own:
+ * https://marlinfw.org/tools/u8glib/converter.html
+ */
+
+//
+// Status Screen Logo bitmap
+//
+#define STATUS_LOGO_Y            6
+#define STATUS_LOGO_WIDTH       40
+
+const unsigned char status_logo_bmp[] PROGMEM = {
+  B00000000,B00000000,B00000000,B00000000,B00000000,
+  B00000000,B00000000,B00000000,B00000000,B00000000,
+  B00000000,B00000000,B00000000,B00000000,B00000000,
+  B00001111,B10001110,B01110000,B01100000,B00011000,
+  B00010000,B10000100,B00100000,B10010000,B00100000,
+  B00010000,B10000100,B00100001,B00001000,B01000000,
+  B00010000,B00000100,B01000001,B00001000,B10000000,
+  B00001000,B00000010,B01000001,B00001000,B10111000,
+  B00000110,B00000010,B01000001,B00001000,B11000100,
+  B00000001,B00000010,B10000001,B00001000,B10000010,
+  B00000000,B10000010,B10000001,B00001000,B10000010,
+  B00010000,B10000001,B10000001,B00001000,B10000010,
+  B00010000,B10000001,B00000000,B10010000,B01000100,
+  B00011111,B00000001,B00000000,B01100000,B00111000,
+  B00000000,B00000000,B00000000,B00000000,B00000000,
+  B00000000,B00000000,B00000000,B00000000,B00000000
+};
+
+//
+// Use default bitmaps
+//
+#define STATUS_HOTEND_ANIM
+#define STATUS_BED_ANIM
+#define STATUS_HEATERS_XSPACE   20
+#if HOTENDS < 2
+  #define STATUS_HEATERS_X      48
+  #define STATUS_BED_X          73
+#else
+  #define STATUS_HEATERS_X      40
+  #define STATUS_BED_X          81
+#endif
diff --git a/config/examples/Sunlu/S8/Configuration.h b/config/examples/Sunlu/S8/Configuration.h
index cf184a7653f..3837a081255 100644
--- a/config/examples/Sunlu/S8/Configuration.h
+++ b/config/examples/Sunlu/S8/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Sunlu/S8/Configuration_adv.h b/config/examples/Sunlu/S8/Configuration_adv.h
index fc45b1a3d6a..0e422bafae7 100644
--- a/config/examples/Sunlu/S8/Configuration_adv.h
+++ b/config/examples/Sunlu/S8/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 60        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 15     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        60 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS    15 // (°C)
 
   #define ADAPTIVE_FAN_SLOWING                // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2272,14 +2291,14 @@
 #if ENABLED(BABYSTEPPING)
   //#define EP_BABYSTEPPING                 // M293/M294 babystepping with EMERGENCY_PARSER support
   //#define BABYSTEP_WITHOUT_HOMING
-  #define BABYSTEP_ALWAYS_AVAILABLE       // Allow babystepping at all times (not just during movement)
+  #define BABYSTEP_ALWAYS_AVAILABLE         // Allow babystepping at all times (not just during movement)
   //#define BABYSTEP_XY                     // Also enable X/Y Babystepping. Not supported on DELTA!
   //#define BABYSTEP_INVERT_Z               // Enable if Z babysteps should go the other way
   //#define BABYSTEP_MILLIMETER_UNITS       // Specify BABYSTEP_MULTIPLICATOR_(XY|Z) in mm instead of micro-steps
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2289,7 +2308,7 @@
     #endif
   #endif
 
-  #define BABYSTEP_DISPLAY_TOTAL          // Display total babysteps since last G28
+  #define BABYSTEP_DISPLAY_TOTAL            // Display total babysteps since last G28
 
   //#define BABYSTEP_ZPROBE_OFFSET          // Combine M851 Z and Babystepping
   //#define BABYSTEP_GLOBAL_Z               // Combine M424 Z and Babystepping
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Sunlu/T3/Configuration.h b/config/examples/Sunlu/T3/Configuration.h
index d13579c8b4c..98dbf4d88cf 100644
--- a/config/examples/Sunlu/T3/Configuration.h
+++ b/config/examples/Sunlu/T3/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  3 // (mm) Z Clearance between probe points
diff --git a/config/examples/Sunlu/T3/Configuration_adv.h b/config/examples/Sunlu/T3/Configuration_adv.h
index bb0c10e6d03..ca01a73cb77 100644
--- a/config/examples/Sunlu/T3/Configuration_adv.h
+++ b/config/examples/Sunlu/T3/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   #define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/TPARA/AXEL_TPARA/Configuration.h b/config/examples/TPARA/AXEL_TPARA/Configuration.h
index 81cb6985e82..4058935ec2d 100644
--- a/config/examples/TPARA/AXEL_TPARA/Configuration.h
+++ b/config/examples/TPARA/AXEL_TPARA/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1481,7 +1482,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1651,6 +1653,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1688,8 +1691,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/TPARA/AXEL_TPARA/Configuration_adv.h b/config/examples/TPARA/AXEL_TPARA/Configuration_adv.h
index 0e020cbfb4c..59c9c8c0af4 100644
--- a/config/examples/TPARA/AXEL_TPARA/Configuration_adv.h
+++ b/config/examples/TPARA/AXEL_TPARA/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Tevo/Michelangelo/Configuration.h b/config/examples/Tevo/Michelangelo/Configuration.h
index 03be9519448..b009e8eb05a 100644
--- a/config/examples/Tevo/Michelangelo/Configuration.h
+++ b/config/examples/Tevo/Michelangelo/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Tevo/Michelangelo/Configuration_adv.h b/config/examples/Tevo/Michelangelo/Configuration_adv.h
index 398586b8af7..81a444b0e35 100644
--- a/config/examples/Tevo/Michelangelo/Configuration_adv.h
+++ b/config/examples/Tevo/Michelangelo/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2279,7 +2298,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Tevo/Nereus/Configuration.h b/config/examples/Tevo/Nereus/Configuration.h
index 27508f3b6df..09de8e80718 100644
--- a/config/examples/Tevo/Nereus/Configuration.h
+++ b/config/examples/Tevo/Nereus/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Tevo/Nereus/Configuration_adv.h b/config/examples/Tevo/Nereus/Configuration_adv.h
index f8ad28059ff..0a82ad0b9e2 100644
--- a/config/examples/Tevo/Nereus/Configuration_adv.h
+++ b/config/examples/Tevo/Nereus/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2279,7 +2298,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Tevo/Tarantula Pro/MKS Gen_L/Configuration.h b/config/examples/Tevo/Tarantula Pro/MKS Gen_L/Configuration.h
index a8b6885d910..ee476e0caa8 100644
--- a/config/examples/Tevo/Tarantula Pro/MKS Gen_L/Configuration.h	
+++ b/config/examples/Tevo/Tarantula Pro/MKS Gen_L/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Tevo/Tarantula Pro/MKS Gen_L/Configuration_adv.h b/config/examples/Tevo/Tarantula Pro/MKS Gen_L/Configuration_adv.h
index be6e9fb83e3..2d4b5c8a652 100644
--- a/config/examples/Tevo/Tarantula Pro/MKS Gen_L/Configuration_adv.h	
+++ b/config/examples/Tevo/Tarantula Pro/MKS Gen_L/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Tevo/Tarantula Pro/MKS SGen_L/Configuration.h b/config/examples/Tevo/Tarantula Pro/MKS SGen_L/Configuration.h
index 660b39149b1..4c98f8c6fd7 100644
--- a/config/examples/Tevo/Tarantula Pro/MKS SGen_L/Configuration.h	
+++ b/config/examples/Tevo/Tarantula Pro/MKS SGen_L/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Tevo/Tarantula Pro/MKS SGen_L/Configuration_adv.h b/config/examples/Tevo/Tarantula Pro/MKS SGen_L/Configuration_adv.h
index 75bb04812f5..b8ed8a899c2 100644
--- a/config/examples/Tevo/Tarantula Pro/MKS SGen_L/Configuration_adv.h	
+++ b/config/examples/Tevo/Tarantula Pro/MKS SGen_L/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Tevo/Tornado/V1 (MKS Base)/Configuration.h b/config/examples/Tevo/Tornado/V1 (MKS Base)/Configuration.h
index e1014ff6f9e..2e20f21d232 100644
--- a/config/examples/Tevo/Tornado/V1 (MKS Base)/Configuration.h	
+++ b/config/examples/Tevo/Tornado/V1 (MKS Base)/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Tevo/Tornado/V1 (MKS Base)/Configuration_adv.h b/config/examples/Tevo/Tornado/V1 (MKS Base)/Configuration_adv.h
index 48e0bf760f0..40f0907f6d0 100644
--- a/config/examples/Tevo/Tornado/V1 (MKS Base)/Configuration_adv.h	
+++ b/config/examples/Tevo/Tornado/V1 (MKS Base)/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2279,7 +2298,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Tevo/Tornado/V2 (MKS Gen_L)/Configuration.h b/config/examples/Tevo/Tornado/V2 (MKS Gen_L)/Configuration.h
index 8f2d8ba4c5a..d63be5232ed 100644
--- a/config/examples/Tevo/Tornado/V2 (MKS Gen_L)/Configuration.h	
+++ b/config/examples/Tevo/Tornado/V2 (MKS Gen_L)/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Tevo/Tornado/V2 (MKS Gen_L)/Configuration_adv.h b/config/examples/Tevo/Tornado/V2 (MKS Gen_L)/Configuration_adv.h
index 48e0bf760f0..40f0907f6d0 100644
--- a/config/examples/Tevo/Tornado/V2 (MKS Gen_L)/Configuration_adv.h	
+++ b/config/examples/Tevo/Tornado/V2 (MKS Gen_L)/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2279,7 +2298,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Tinkerine/Ditto Pro/RAMPS 1.4/Configuration.h b/config/examples/Tinkerine/Ditto Pro/RAMPS 1.4/Configuration.h
index 9219f3b405b..11d0fb6ee16 100644
--- a/config/examples/Tinkerine/Ditto Pro/RAMPS 1.4/Configuration.h	
+++ b/config/examples/Tinkerine/Ditto Pro/RAMPS 1.4/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Tinkerine/Ditto Pro/RAMPS 1.4/Configuration_adv.h b/config/examples/Tinkerine/Ditto Pro/RAMPS 1.4/Configuration_adv.h
index 2f2031a3d38..788505ba19c 100644
--- a/config/examples/Tinkerine/Ditto Pro/RAMPS 1.4/Configuration_adv.h	
+++ b/config/examples/Tinkerine/Ditto Pro/RAMPS 1.4/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/TinyBoy2/Configuration.h b/config/examples/TinyBoy2/Configuration.h
index 8991538968f..123592910ae 100644
--- a/config/examples/TinyBoy2/Configuration.h
+++ b/config/examples/TinyBoy2/Configuration.h
@@ -124,7 +124,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -409,14 +409,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1517,7 +1518,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1687,6 +1689,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1724,8 +1727,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/TinyBoy2/Configuration_adv.h b/config/examples/TinyBoy2/Configuration_adv.h
index ec8e74cc861..2e697dd42a8 100644
--- a/config/examples/TinyBoy2/Configuration_adv.h
+++ b/config/examples/TinyBoy2/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Tronxy/D01/CXY-v6-191017 board/Configuration.h b/config/examples/Tronxy/D01/CXY-v6-191017 board/Configuration.h
index 9dabd1a5eca..a93b2572a92 100644
--- a/config/examples/Tronxy/D01/CXY-v6-191017 board/Configuration.h	
+++ b/config/examples/Tronxy/D01/CXY-v6-191017 board/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1486,7 +1487,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1656,6 +1658,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1693,8 +1696,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Tronxy/D01/CXY-v6-191017 board/Configuration_adv.h b/config/examples/Tronxy/D01/CXY-v6-191017 board/Configuration_adv.h
index 4e713f90167..e83850862b2 100644
--- a/config/examples/Tronxy/D01/CXY-v6-191017 board/Configuration_adv.h	
+++ b/config/examples/Tronxy/D01/CXY-v6-191017 board/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Tronxy/X1/Configuration.h b/config/examples/Tronxy/X1/Configuration.h
index 8a7f7c8d225..acfa7012705 100644
--- a/config/examples/Tronxy/X1/Configuration.h
+++ b/config/examples/Tronxy/X1/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Tronxy/X1/Configuration_adv.h b/config/examples/Tronxy/X1/Configuration_adv.h
index df3e109acdc..196ebfa29c4 100644
--- a/config/examples/Tronxy/X1/Configuration_adv.h
+++ b/config/examples/Tronxy/X1/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Tronxy/X3A/Configuration.h b/config/examples/Tronxy/X3A/Configuration.h
index 704117d397e..753a827e334 100644
--- a/config/examples/Tronxy/X3A/Configuration.h
+++ b/config/examples/Tronxy/X3A/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    5 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Tronxy/X3A/Configuration_adv.h b/config/examples/Tronxy/X3A/Configuration_adv.h
index ce8dcdd71c3..4d83fbaf386 100644
--- a/config/examples/Tronxy/X3A/Configuration_adv.h
+++ b/config/examples/Tronxy/X3A/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Tronxy/X5S-2E/Green Board (Chitu V5)/Configuration.h b/config/examples/Tronxy/X5S-2E/Green Board (Chitu V5)/Configuration.h
index c1541ff6d5a..8ecfd6d98f9 100644
--- a/config/examples/Tronxy/X5S-2E/Green Board (Chitu V5)/Configuration.h	
+++ b/config/examples/Tronxy/X5S-2E/Green Board (Chitu V5)/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 #define SERIAL_PORT_3 2
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -2438,7 +2441,7 @@
 
 #define PREHEAT_2_LABEL       "Standby PETG"
 #define PREHEAT_2_TEMP_HOTEND 200
-#define PREHEAT_2_TEMP_BED    65
+#define PREHEAT_2_TEMP_BED     65
 #define PREHEAT_2_TEMP_CHAMBER 0
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
diff --git a/config/examples/Tronxy/X5S-2E/Green Board (Chitu V5)/Configuration_adv.h b/config/examples/Tronxy/X5S-2E/Green Board (Chitu V5)/Configuration_adv.h
index 97360eb0cf2..72c48999ebc 100644
--- a/config/examples/Tronxy/X5S-2E/Green Board (Chitu V5)/Configuration_adv.h	
+++ b/config/examples/Tronxy/X5S-2E/Green Board (Chitu V5)/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Tronxy/X5S-2E/Red Board (Tronxy 3.1.0)/Configuration.h b/config/examples/Tronxy/X5S-2E/Red Board (Tronxy 3.1.0)/Configuration.h
index cc47ac01cd7..1391ceb5090 100644
--- a/config/examples/Tronxy/X5S-2E/Red Board (Tronxy 3.1.0)/Configuration.h	
+++ b/config/examples/Tronxy/X5S-2E/Red Board (Tronxy 3.1.0)/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -391,14 +391,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1486,7 +1487,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1656,6 +1658,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1693,8 +1696,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Tronxy/X5S-2E/Red Board (Tronxy 3.1.0)/Configuration_adv.h b/config/examples/Tronxy/X5S-2E/Red Board (Tronxy 3.1.0)/Configuration_adv.h
index ca65802fe3c..cca6f75461d 100644
--- a/config/examples/Tronxy/X5S-2E/Red Board (Tronxy 3.1.0)/Configuration_adv.h	
+++ b/config/examples/Tronxy/X5S-2E/Red Board (Tronxy 3.1.0)/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Tronxy/X5S/Configuration.h b/config/examples/Tronxy/X5S/Configuration.h
index e6ba2c6a07e..0429c166513 100644
--- a/config/examples/Tronxy/X5S/Configuration.h
+++ b/config/examples/Tronxy/X5S/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Tronxy/X5S/Configuration_adv.h b/config/examples/Tronxy/X5S/Configuration_adv.h
index df3e109acdc..196ebfa29c4 100644
--- a/config/examples/Tronxy/X5S/Configuration_adv.h
+++ b/config/examples/Tronxy/X5S/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Tronxy/X5SA-2E/Configuration.h b/config/examples/Tronxy/X5SA-2E/Configuration.h
index feb64ff0014..644e442b941 100644
--- a/config/examples/Tronxy/X5SA-2E/Configuration.h
+++ b/config/examples/Tronxy/X5SA-2E/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1479,7 +1480,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1649,6 +1651,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1686,8 +1689,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -2439,7 +2442,7 @@
 
 #define PREHEAT_2_LABEL       "ABS"
 #define PREHEAT_2_TEMP_HOTEND 240
-#define PREHEAT_2_TEMP_BED    90
+#define PREHEAT_2_TEMP_BED     90
 #define PREHEAT_2_TEMP_CHAMBER 35
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
diff --git a/config/examples/Tronxy/X5SA-2E/Configuration_adv.h b/config/examples/Tronxy/X5SA-2E/Configuration_adv.h
index 6dc56922b44..cacabbfe0b8 100644
--- a/config/examples/Tronxy/X5SA-2E/Configuration_adv.h
+++ b/config/examples/Tronxy/X5SA-2E/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2280,10 +2299,10 @@
   //#define BABYSTEP_XY                     // Also enable X/Y Babystepping. Not supported on DELTA!
   //#define BABYSTEP_INVERT_Z               // Enable if Z babysteps should go the other way
   //#define BABYSTEP_MILLIMETER_UNITS       // Specify BABYSTEP_MULTIPLICATOR_(XY|Z) in mm instead of micro-steps
-  #define BABYSTEP_MULTIPLICATOR_Z  10       // (steps or mm) Steps or millimeter distance for each Z babystep
+  #define BABYSTEP_MULTIPLICATOR_Z  10      // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2293,7 +2312,7 @@
     #endif
   #endif
 
-  #define BABYSTEP_DISPLAY_TOTAL          // Display total babysteps since last G28
+  #define BABYSTEP_DISPLAY_TOTAL            // Display total babysteps since last G28
 
   #define BABYSTEP_ZPROBE_OFFSET            // Combine M851 Z and Babystepping
   //#define BABYSTEP_GLOBAL_Z               // Combine M424 Z and Babystepping
@@ -2717,7 +2736,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4416,44 +4435,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4463,11 +4527,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4478,6 +4557,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4500,7 +4641,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Tronxy/X5SA/Configuration.h b/config/examples/Tronxy/X5SA/Configuration.h
index 3805942cfb3..2f792a38127 100644
--- a/config/examples/Tronxy/X5SA/Configuration.h
+++ b/config/examples/Tronxy/X5SA/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1479,7 +1480,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1649,6 +1651,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1686,8 +1689,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -2439,7 +2442,7 @@
 
 #define PREHEAT_2_LABEL       "ABS"
 #define PREHEAT_2_TEMP_HOTEND 240
-#define PREHEAT_2_TEMP_BED    90
+#define PREHEAT_2_TEMP_BED     90
 #define PREHEAT_2_TEMP_CHAMBER 35
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
diff --git a/config/examples/Tronxy/X5SA/Configuration_adv.h b/config/examples/Tronxy/X5SA/Configuration_adv.h
index 6ce319c460c..3536d916225 100644
--- a/config/examples/Tronxy/X5SA/Configuration_adv.h
+++ b/config/examples/Tronxy/X5SA/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2280,10 +2299,10 @@
   //#define BABYSTEP_XY                     // Also enable X/Y Babystepping. Not supported on DELTA!
   //#define BABYSTEP_INVERT_Z               // Enable if Z babysteps should go the other way
   //#define BABYSTEP_MILLIMETER_UNITS       // Specify BABYSTEP_MULTIPLICATOR_(XY|Z) in mm instead of micro-steps
-  #define BABYSTEP_MULTIPLICATOR_Z  10       // (steps or mm) Steps or millimeter distance for each Z babystep
+  #define BABYSTEP_MULTIPLICATOR_Z  10      // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2293,7 +2312,7 @@
     #endif
   #endif
 
-  #define BABYSTEP_DISPLAY_TOTAL          // Display total babysteps since last G28
+  #define BABYSTEP_DISPLAY_TOTAL            // Display total babysteps since last G28
 
   #define BABYSTEP_ZPROBE_OFFSET            // Combine M851 Z and Babystepping
   //#define BABYSTEP_GLOBAL_Z               // Combine M424 Z and Babystepping
@@ -2717,7 +2736,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4416,44 +4435,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4463,11 +4527,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4478,6 +4557,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4500,7 +4641,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Tronxy/X5SA/README.md b/config/examples/Tronxy/X5SA/README.md
index 6ee7dad0738..524459c7232 100644
--- a/config/examples/Tronxy/X5SA/README.md
+++ b/config/examples/Tronxy/X5SA/README.md
@@ -237,7 +237,7 @@ OBSOLETE! JUST USE THE FIRST METHOD.
 
 Some random V5 boards have a problem with the PIN that the Z-MIN Probe is connected to, causing the probe to appear triggered all the time. Due to this issue the probe always fails.
 
-If you have this issue, edit the file: `Marlin/buildroot/share/PlatformIO/variants/CHITU_F103/wirish/boards_setup.cpp`
+If you have this issue, edit the file: `buildroot/share/PlatformIO/variants/CHITU_F103/wirish/boards_setup.cpp`
 
 Change these lines:
 ```cpp
diff --git a/config/examples/Tronxy/XY100/Configuration.h b/config/examples/Tronxy/XY100/Configuration.h
index a9bb16fbeb2..06dfe3a762f 100644
--- a/config/examples/Tronxy/XY100/Configuration.h
+++ b/config/examples/Tronxy/XY100/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1484,7 +1485,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1654,6 +1656,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1691,8 +1694,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Tronxy/XY100/Configuration_adv.h b/config/examples/Tronxy/XY100/Configuration_adv.h
index df3e109acdc..196ebfa29c4 100644
--- a/config/examples/Tronxy/XY100/Configuration_adv.h
+++ b/config/examples/Tronxy/XY100/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Tronxy/XY2-Pro/Configuration.h b/config/examples/Tronxy/XY2-Pro/Configuration.h
index 47f5a0af35f..918cf350a66 100644
--- a/config/examples/Tronxy/XY2-Pro/Configuration.h
+++ b/config/examples/Tronxy/XY2-Pro/Configuration.h
@@ -143,7 +143,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -422,14 +422,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1513,7 +1514,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1683,6 +1685,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1720,8 +1723,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Tronxy/XY2-Pro/Configuration_adv.h b/config/examples/Tronxy/XY2-Pro/Configuration_adv.h
index d348f265a71..919850e9852 100644
--- a/config/examples/Tronxy/XY2-Pro/Configuration_adv.h
+++ b/config/examples/Tronxy/XY2-Pro/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Turnigy/Fabrikator/Configuration.h b/config/examples/Turnigy/Fabrikator/Configuration.h
index 94f7c586ded..c5953230c67 100644
--- a/config/examples/Turnigy/Fabrikator/Configuration.h
+++ b/config/examples/Turnigy/Fabrikator/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Turnigy/Fabrikator/Configuration_adv.h b/config/examples/Turnigy/Fabrikator/Configuration_adv.h
index e288acf4b2b..6e83894fae1 100644
--- a/config/examples/Turnigy/Fabrikator/Configuration_adv.h
+++ b/config/examples/Turnigy/Fabrikator/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Two Trees/BlueR Plus/Configuration.h b/config/examples/Two Trees/BlueR Plus/Configuration.h
index 27a907447d0..d8b81c5b422 100644
--- a/config/examples/Two Trees/BlueR Plus/Configuration.h	
+++ b/config/examples/Two Trees/BlueR Plus/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1479,7 +1480,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1649,6 +1651,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1686,8 +1689,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1910,7 +1913,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Two Trees/BlueR Plus/Configuration_adv.h b/config/examples/Two Trees/BlueR Plus/Configuration_adv.h
index cd8499d50c6..177ddb430fb 100644
--- a/config/examples/Two Trees/BlueR Plus/Configuration_adv.h	
+++ b/config/examples/Two Trees/BlueR Plus/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2712,7 +2731,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4411,44 +4430,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4458,11 +4522,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4473,6 +4552,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4495,7 +4636,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Two Trees/BlueR/BlueR V1/Configuration.h b/config/examples/Two Trees/BlueR/BlueR V1/Configuration.h
index 7c64dd729c9..3ac1e503827 100644
--- a/config/examples/Two Trees/BlueR/BlueR V1/Configuration.h	
+++ b/config/examples/Two Trees/BlueR/BlueR V1/Configuration.h	
@@ -111,7 +111,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -400,14 +400,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1496,7 +1497,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1666,6 +1668,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1703,8 +1706,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1934,7 +1937,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Two Trees/BlueR/BlueR V1/Configuration_adv.h b/config/examples/Two Trees/BlueR/BlueR V1/Configuration_adv.h
index 04c6ed3fb6d..2cc92482be3 100644
--- a/config/examples/Two Trees/BlueR/BlueR V1/Configuration_adv.h	
+++ b/config/examples/Two Trees/BlueR/BlueR V1/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Two Trees/BlueR/BlueR V2/Configuration.h b/config/examples/Two Trees/BlueR/BlueR V2/Configuration.h
index 83178337fdc..579d25fcec1 100644
--- a/config/examples/Two Trees/BlueR/BlueR V2/Configuration.h	
+++ b/config/examples/Two Trees/BlueR/BlueR V2/Configuration.h	
@@ -112,7 +112,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -401,14 +401,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1497,7 +1498,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1667,6 +1669,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1704,8 +1707,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1935,7 +1938,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Two Trees/BlueR/BlueR V2/Configuration_adv.h b/config/examples/Two Trees/BlueR/BlueR V2/Configuration_adv.h
index 04c6ed3fb6d..2cc92482be3 100644
--- a/config/examples/Two Trees/BlueR/BlueR V2/Configuration_adv.h	
+++ b/config/examples/Two Trees/BlueR/BlueR V2/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Two Trees/BlueR/BlueR V3/Configuration.h b/config/examples/Two Trees/BlueR/BlueR V3/Configuration.h
index c11c6f001ac..a1a4233d22c 100644
--- a/config/examples/Two Trees/BlueR/BlueR V3/Configuration.h	
+++ b/config/examples/Two Trees/BlueR/BlueR V3/Configuration.h	
@@ -116,7 +116,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -408,14 +408,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1508,7 +1509,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1678,6 +1680,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1715,8 +1718,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1946,7 +1949,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Two Trees/BlueR/BlueR V3/Configuration_adv.h b/config/examples/Two Trees/BlueR/BlueR V3/Configuration_adv.h
index 04c6ed3fb6d..2cc92482be3 100644
--- a/config/examples/Two Trees/BlueR/BlueR V3/Configuration_adv.h	
+++ b/config/examples/Two Trees/BlueR/BlueR V3/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Two Trees/SP-5_V3/Configuration.h b/config/examples/Two Trees/SP-5_V3/Configuration.h
index 8a6f8d9be1b..7fbe14cbcda 100644
--- a/config/examples/Two Trees/SP-5_V3/Configuration.h	
+++ b/config/examples/Two Trees/SP-5_V3/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Two Trees/SP-5_V3/Configuration_adv.h b/config/examples/Two Trees/SP-5_V3/Configuration_adv.h
index ae822f62936..2d48c73fc8c 100644
--- a/config/examples/Two Trees/SP-5_V3/Configuration_adv.h	
+++ b/config/examples/Two Trees/SP-5_V3/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 60        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 6     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        60 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     6 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Two Trees/Sapphire Plus/Sapphire Plus V2.1/Configuration.h b/config/examples/Two Trees/Sapphire Plus/Sapphire Plus V2.1/Configuration.h
index 6480257d6dc..01899eb867e 100644
--- a/config/examples/Two Trees/Sapphire Plus/Sapphire Plus V2.1/Configuration.h	
+++ b/config/examples/Two Trees/Sapphire Plus/Sapphire Plus V2.1/Configuration.h	
@@ -114,7 +114,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -393,14 +393,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1499,7 +1500,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1674,6 +1676,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1711,8 +1714,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    4 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  3 // (mm) Z Clearance between probe points
diff --git a/config/examples/Two Trees/Sapphire Plus/Sapphire Plus V2.1/Configuration_adv.h b/config/examples/Two Trees/Sapphire Plus/Sapphire Plus V2.1/Configuration_adv.h
index a267f68feca..d0e43151985 100644
--- a/config/examples/Two Trees/Sapphire Plus/Sapphire Plus V2.1/Configuration_adv.h	
+++ b/config/examples/Two Trees/Sapphire Plus/Sapphire Plus V2.1/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1086,9 +1086,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 #if ENABLED(SAPPHIRE_PLUS_BLTOUCH)
   #define ASSISTED_TRAMMING
 #endif
@@ -1111,19 +1113,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1133,8 +1138,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1187,7 +1192,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1500,8 +1505,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1518,6 +1532,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1532,8 +1550,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1564,6 +1580,9 @@
   // BACK menu items keep the highlight at the top
   #define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2719,7 +2738,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4419,44 +4438,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4466,11 +4530,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4481,6 +4560,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4503,7 +4644,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Two Trees/Sapphire Plus/Sapphire Plus V2/Configuration.h b/config/examples/Two Trees/Sapphire Plus/Sapphire Plus V2/Configuration.h
index 8bb9dcedf5d..20f1a339ec3 100644
--- a/config/examples/Two Trees/Sapphire Plus/Sapphire Plus V2/Configuration.h	
+++ b/config/examples/Two Trees/Sapphire Plus/Sapphire Plus V2/Configuration.h	
@@ -114,7 +114,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -393,14 +393,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1499,7 +1500,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1674,6 +1676,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1711,8 +1714,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    4 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  3 // (mm) Z Clearance between probe points
@@ -1936,7 +1939,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/Two Trees/Sapphire Plus/Sapphire Plus V2/Configuration_adv.h b/config/examples/Two Trees/Sapphire Plus/Sapphire Plus V2/Configuration_adv.h
index 38eeffbf7a3..081cacc27bb 100644
--- a/config/examples/Two Trees/Sapphire Plus/Sapphire Plus V2/Configuration_adv.h	
+++ b/config/examples/Two Trees/Sapphire Plus/Sapphire Plus V2/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1086,9 +1086,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 #if ENABLED(SAPPHIRE_PLUS_BLTOUCH)
   #define ASSISTED_TRAMMING
 #endif
@@ -1111,19 +1113,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 40
+  #define TRAMMING_SCREW_THREAD M4_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1133,8 +1138,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1187,7 +1192,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1500,8 +1505,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1518,6 +1532,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1532,8 +1550,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1564,6 +1580,9 @@
   // BACK menu items keep the highlight at the top
   #define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2719,7 +2738,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4419,44 +4438,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4466,11 +4530,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4481,6 +4560,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4503,7 +4644,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Two Trees/Sapphire Pro/Configuration.h b/config/examples/Two Trees/Sapphire Pro/Configuration.h
index bb710689186..535b584c69c 100644
--- a/config/examples/Two Trees/Sapphire Pro/Configuration.h	
+++ b/config/examples/Two Trees/Sapphire Pro/Configuration.h	
@@ -112,7 +112,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -401,14 +401,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1494,7 +1495,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1664,6 +1666,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1701,8 +1704,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Two Trees/Sapphire Pro/Configuration_adv.h b/config/examples/Two Trees/Sapphire Pro/Configuration_adv.h
index 0a6ee124810..69cc4411fab 100644
--- a/config/examples/Two Trees/Sapphire Pro/Configuration_adv.h	
+++ b/config/examples/Two Trees/Sapphire Pro/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/UltiMachine/Archim1/Configuration.h b/config/examples/UltiMachine/Archim1/Configuration.h
index 8b787f1122d..b5dcaadc7c4 100644
--- a/config/examples/UltiMachine/Archim1/Configuration.h
+++ b/config/examples/UltiMachine/Archim1/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/UltiMachine/Archim1/Configuration_adv.h b/config/examples/UltiMachine/Archim1/Configuration_adv.h
index b08ad49aa1c..ebac71e699b 100644
--- a/config/examples/UltiMachine/Archim1/Configuration_adv.h
+++ b/config/examples/UltiMachine/Archim1/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/UltiMachine/Archim2/Configuration.h b/config/examples/UltiMachine/Archim2/Configuration.h
index a4220beb357..2b4eaa6af28 100644
--- a/config/examples/UltiMachine/Archim2/Configuration.h
+++ b/config/examples/UltiMachine/Archim2/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/UltiMachine/Archim2/Configuration_adv.h b/config/examples/UltiMachine/Archim2/Configuration_adv.h
index 3119b825dca..583df03aa8b 100644
--- a/config/examples/UltiMachine/Archim2/Configuration_adv.h
+++ b/config/examples/UltiMachine/Archim2/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Ultimaker/Ultimaker 2+/Configuration.h b/config/examples/Ultimaker/Ultimaker 2+/Configuration.h
index 0c25fd5f284..949cc994211 100644
--- a/config/examples/Ultimaker/Ultimaker 2+/Configuration.h	
+++ b/config/examples/Ultimaker/Ultimaker 2+/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1480,7 +1481,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1650,6 +1652,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1687,8 +1690,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Ultimaker/Ultimaker 2+/Configuration_adv.h b/config/examples/Ultimaker/Ultimaker 2+/Configuration_adv.h
index 04b6d0a40c4..ad273e7ff9e 100644
--- a/config/examples/Ultimaker/Ultimaker 2+/Configuration_adv.h	
+++ b/config/examples/Ultimaker/Ultimaker 2+/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 2730
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   #define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   #define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Ultimaker/Ultimaker 2/Configuration.h b/config/examples/Ultimaker/Ultimaker 2/Configuration.h
index 367ad6acac8..fba14cc1e10 100644
--- a/config/examples/Ultimaker/Ultimaker 2/Configuration.h	
+++ b/config/examples/Ultimaker/Ultimaker 2/Configuration.h	
@@ -110,7 +110,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -390,14 +390,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1492,7 +1493,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1662,6 +1664,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1699,8 +1702,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Ultimaker/Ultimaker 2/Configuration_adv.h b/config/examples/Ultimaker/Ultimaker 2/Configuration_adv.h
index c92a896a975..c6223d2ffae 100644
--- a/config/examples/Ultimaker/Ultimaker 2/Configuration_adv.h	
+++ b/config/examples/Ultimaker/Ultimaker 2/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   #define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Ultimaker/Ultimaker Original (1.5.7)/Configuration.h b/config/examples/Ultimaker/Ultimaker Original (1.5.7)/Configuration.h
index 1baead7b7f4..ac33fa63cf5 100644
--- a/config/examples/Ultimaker/Ultimaker Original (1.5.7)/Configuration.h	
+++ b/config/examples/Ultimaker/Ultimaker Original (1.5.7)/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Ultimaker/Ultimaker Original (1.5.7)/Configuration_adv.h b/config/examples/Ultimaker/Ultimaker Original (1.5.7)/Configuration_adv.h
index d5c6a1e8000..a00eba475b0 100644
--- a/config/examples/Ultimaker/Ultimaker Original (1.5.7)/Configuration_adv.h	
+++ b/config/examples/Ultimaker/Ultimaker Original (1.5.7)/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Ultimaker/Ultimaker Original Plus (2.1.1)/Configuration.h b/config/examples/Ultimaker/Ultimaker Original Plus (2.1.1)/Configuration.h
index 8f9ef0e354a..4419264b491 100644
--- a/config/examples/Ultimaker/Ultimaker Original Plus (2.1.1)/Configuration.h	
+++ b/config/examples/Ultimaker/Ultimaker Original Plus (2.1.1)/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1480,7 +1481,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1650,6 +1652,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1687,8 +1690,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Ultimaker/Ultimaker Original Plus (2.1.1)/Configuration_adv.h b/config/examples/Ultimaker/Ultimaker Original Plus (2.1.1)/Configuration_adv.h
index 6d74c535d8c..5c62072ac31 100644
--- a/config/examples/Ultimaker/Ultimaker Original Plus (2.1.1)/Configuration_adv.h	
+++ b/config/examples/Ultimaker/Ultimaker Original Plus (2.1.1)/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   #define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   #define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Ultimaker/Ultimaker Original Plus DXU/Configuration.h b/config/examples/Ultimaker/Ultimaker Original Plus DXU/Configuration.h
index 3b965960a1e..07ce329af91 100644
--- a/config/examples/Ultimaker/Ultimaker Original Plus DXU/Configuration.h	
+++ b/config/examples/Ultimaker/Ultimaker Original Plus DXU/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1481,7 +1482,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1651,6 +1653,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1688,8 +1691,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  3 // (mm) Z Clearance between probe points
diff --git a/config/examples/Ultimaker/Ultimaker Original Plus DXU/Configuration_adv.h b/config/examples/Ultimaker/Ultimaker Original Plus DXU/Configuration_adv.h
index 363c40b3919..bb8c7d58c4d 100644
--- a/config/examples/Ultimaker/Ultimaker Original Plus DXU/Configuration_adv.h	
+++ b/config/examples/Ultimaker/Ultimaker Original Plus DXU/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 #define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1103,19 +1105,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1125,8 +1130,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1179,7 +1184,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1492,8 +1497,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 2730
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1510,6 +1524,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1524,8 +1542,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1556,6 +1572,9 @@
   // BACK menu items keep the highlight at the top
   #define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2711,7 +2730,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4410,44 +4429,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4457,11 +4521,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4472,6 +4551,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4494,7 +4635,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/VORONDesign/Configuration.h b/config/examples/VORONDesign/Configuration.h
index 1ef4cca8c60..101b8026575 100644
--- a/config/examples/VORONDesign/Configuration.h
+++ b/config/examples/VORONDesign/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    0 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  3 // (mm) Z Clearance between probe points
diff --git a/config/examples/VORONDesign/Configuration_adv.h b/config/examples/VORONDesign/Configuration_adv.h
index f79ce5c5257..ee6c6985fb9 100644
--- a/config/examples/VORONDesign/Configuration_adv.h
+++ b/config/examples/VORONDesign/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Velleman/K8200 Upgraded/Configuration.h b/config/examples/Velleman/K8200 Upgraded/Configuration.h
index bc5c06e6792..d9aa248f9d6 100644
--- a/config/examples/Velleman/K8200 Upgraded/Configuration.h	
+++ b/config/examples/Velleman/K8200 Upgraded/Configuration.h	
@@ -132,7 +132,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -415,14 +415,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1512,7 +1513,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1682,6 +1684,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1719,8 +1722,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Velleman/K8200 Upgraded/Configuration_adv.h b/config/examples/Velleman/K8200 Upgraded/Configuration_adv.h
index cff613d80a6..bf68b380732 100644
--- a/config/examples/Velleman/K8200 Upgraded/Configuration_adv.h	
+++ b/config/examples/Velleman/K8200 Upgraded/Configuration_adv.h	
@@ -315,8 +315,8 @@
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
   // K8200 has weak heaters/power supply by default, so you have to relax!
-  #define THERMAL_PROTECTION_PERIOD 60        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 8     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        60 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     8 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1095,9 +1095,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1118,19 +1120,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1140,8 +1145,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1194,7 +1199,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1507,8 +1512,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1525,6 +1539,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1539,8 +1557,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1571,6 +1587,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2726,7 +2745,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4425,44 +4444,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4472,11 +4536,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4487,6 +4566,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4509,7 +4650,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Velleman/K8200/Configuration.h b/config/examples/Velleman/K8200/Configuration.h
index 08f1935086b..66ba4b557fa 100644
--- a/config/examples/Velleman/K8200/Configuration.h
+++ b/config/examples/Velleman/K8200/Configuration.h
@@ -135,7 +135,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -418,14 +418,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1515,7 +1516,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1685,6 +1687,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1722,8 +1725,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Velleman/K8200/Configuration_adv.h b/config/examples/Velleman/K8200/Configuration_adv.h
index 9652e321a2a..5ab834e845e 100644
--- a/config/examples/Velleman/K8200/Configuration_adv.h
+++ b/config/examples/Velleman/K8200/Configuration_adv.h
@@ -315,8 +315,8 @@
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
   // K8200 has weak heaters/power supply by default, so you have to relax!
-  #define THERMAL_PROTECTION_PERIOD 60        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 8     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        60 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     8 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1095,9 +1095,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1118,19 +1120,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1140,8 +1145,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1194,7 +1199,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1507,8 +1512,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1525,6 +1539,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1539,8 +1557,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1571,6 +1587,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2726,7 +2745,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4425,44 +4444,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4472,11 +4536,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4487,6 +4566,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4509,7 +4650,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Velleman/K8400/Dual-head/Configuration.h b/config/examples/Velleman/K8400/Dual-head/Configuration.h
index c2f2573d712..8d9c7c1ec78 100644
--- a/config/examples/Velleman/K8400/Dual-head/Configuration.h
+++ b/config/examples/Velleman/K8400/Dual-head/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Velleman/K8400/Dual-head/Configuration_adv.h b/config/examples/Velleman/K8400/Dual-head/Configuration_adv.h
index 3e4e0d5d49c..33686872454 100644
--- a/config/examples/Velleman/K8400/Dual-head/Configuration_adv.h
+++ b/config/examples/Velleman/K8400/Dual-head/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Velleman/K8400/Single-head/Configuration.h b/config/examples/Velleman/K8400/Single-head/Configuration.h
index 5e8193c0781..f8c6afd42df 100644
--- a/config/examples/Velleman/K8400/Single-head/Configuration.h
+++ b/config/examples/Velleman/K8400/Single-head/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Velleman/K8400/Single-head/Configuration_adv.h b/config/examples/Velleman/K8400/Single-head/Configuration_adv.h
index 3e4e0d5d49c..33686872454 100644
--- a/config/examples/Velleman/K8400/Single-head/Configuration_adv.h
+++ b/config/examples/Velleman/K8400/Single-head/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Voxelab/Aquila/BigTreeTech SKR Mini E3 2.0/Configuration.h b/config/examples/Voxelab/Aquila/BigTreeTech SKR Mini E3 2.0/Configuration.h
index 7af2626b104..9aab8689274 100644
--- a/config/examples/Voxelab/Aquila/BigTreeTech SKR Mini E3 2.0/Configuration.h	
+++ b/config/examples/Voxelab/Aquila/BigTreeTech SKR Mini E3 2.0/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Voxelab/Aquila/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h b/config/examples/Voxelab/Aquila/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h
index df75a715e9c..fc7f01996f5 100644
--- a/config/examples/Voxelab/Aquila/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h	
+++ b/config/examples/Voxelab/Aquila/BigTreeTech SKR Mini E3 2.0/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/WASP/PowerWASP/Configuration.h b/config/examples/WASP/PowerWASP/Configuration.h
index 5e3c59c3e16..713cf5c45cd 100644
--- a/config/examples/WASP/PowerWASP/Configuration.h
+++ b/config/examples/WASP/PowerWASP/Configuration.h
@@ -121,7 +121,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -400,14 +400,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1491,7 +1492,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1661,6 +1663,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1698,8 +1701,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/WASP/PowerWASP/Configuration_adv.h b/config/examples/WASP/PowerWASP/Configuration_adv.h
index 071741d14c4..9c1ba2499e7 100644
--- a/config/examples/WASP/PowerWASP/Configuration_adv.h
+++ b/config/examples/WASP/PowerWASP/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Wanhao/Duplicator 4S/Configuration.h b/config/examples/Wanhao/Duplicator 4S/Configuration.h
index fe89a0a295a..fa233169f17 100644
--- a/config/examples/Wanhao/Duplicator 4S/Configuration.h	
+++ b/config/examples/Wanhao/Duplicator 4S/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Wanhao/Duplicator 4S/Configuration_adv.h b/config/examples/Wanhao/Duplicator 4S/Configuration_adv.h
index 27bbbb5ed34..2c5351050ee 100644
--- a/config/examples/Wanhao/Duplicator 4S/Configuration_adv.h	
+++ b/config/examples/Wanhao/Duplicator 4S/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Wanhao/Duplicator 6/Configuration.h b/config/examples/Wanhao/Duplicator 6/Configuration.h
index 121a7a18958..fb47fa896eb 100644
--- a/config/examples/Wanhao/Duplicator 6/Configuration.h	
+++ b/config/examples/Wanhao/Duplicator 6/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Wanhao/Duplicator 6/Configuration_adv.h b/config/examples/Wanhao/Duplicator 6/Configuration_adv.h
index 51eef86c895..ebf351b034d 100644
--- a/config/examples/Wanhao/Duplicator 6/Configuration_adv.h	
+++ b/config/examples/Wanhao/Duplicator 6/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 60        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        60 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1496,8 +1501,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1514,6 +1528,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1528,8 +1546,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1560,6 +1576,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2715,7 +2734,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4414,44 +4433,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4461,11 +4525,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4476,6 +4555,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4498,7 +4639,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Wanhao/Duplicator i3 2.1/Configuration.h b/config/examples/Wanhao/Duplicator i3 2.1/Configuration.h
index 7ffd98e1e2a..f7e574ee148 100644
--- a/config/examples/Wanhao/Duplicator i3 2.1/Configuration.h	
+++ b/config/examples/Wanhao/Duplicator i3 2.1/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Wanhao/Duplicator i3 2.1/Configuration_adv.h b/config/examples/Wanhao/Duplicator i3 2.1/Configuration_adv.h
index 9eb01bbc596..965911bead9 100644
--- a/config/examples/Wanhao/Duplicator i3 2.1/Configuration_adv.h	
+++ b/config/examples/Wanhao/Duplicator i3 2.1/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Wanhao/Duplicator i3 Mini/Configuration.h b/config/examples/Wanhao/Duplicator i3 Mini/Configuration.h
index 28348151311..04f41571723 100644
--- a/config/examples/Wanhao/Duplicator i3 Mini/Configuration.h	
+++ b/config/examples/Wanhao/Duplicator i3 Mini/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Wanhao/Duplicator i3 Mini/Configuration_adv.h b/config/examples/Wanhao/Duplicator i3 Mini/Configuration_adv.h
index ff50706543e..a6a1a99b5bb 100644
--- a/config/examples/Wanhao/Duplicator i3 Mini/Configuration_adv.h	
+++ b/config/examples/Wanhao/Duplicator i3 Mini/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Wanhao/Duplicator i3 Plus/Configuration.h b/config/examples/Wanhao/Duplicator i3 Plus/Configuration.h
index fa2178f4642..8ad4c059d50 100644
--- a/config/examples/Wanhao/Duplicator i3 Plus/Configuration.h	
+++ b/config/examples/Wanhao/Duplicator i3 Plus/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Wanhao/Duplicator i3 Plus/Configuration_adv.h b/config/examples/Wanhao/Duplicator i3 Plus/Configuration_adv.h
index df3e109acdc..196ebfa29c4 100644
--- a/config/examples/Wanhao/Duplicator i3 Plus/Configuration_adv.h	
+++ b/config/examples/Wanhao/Duplicator i3 Plus/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Weedo/Tina2/V2/Configuration.h b/config/examples/Weedo/Tina2/V2/Configuration.h
index d8da3b542f8..ba77f8efa26 100644
--- a/config/examples/Weedo/Tina2/V2/Configuration.h
+++ b/config/examples/Weedo/Tina2/V2/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Weedo/Tina2/V2/Configuration_adv.h b/config/examples/Weedo/Tina2/V2/Configuration_adv.h
index 35695e2f79f..7e497aee7be 100644
--- a/config/examples/Weedo/Tina2/V2/Configuration_adv.h
+++ b/config/examples/Weedo/Tina2/V2/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Weedo/Tina2/V3/Configuration.h b/config/examples/Weedo/Tina2/V3/Configuration.h
index 20f6bb0a015..059b20c504e 100644
--- a/config/examples/Weedo/Tina2/V3/Configuration.h
+++ b/config/examples/Weedo/Tina2/V3/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1647,6 +1649,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1684,8 +1687,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Weedo/Tina2/V3/Configuration_adv.h b/config/examples/Weedo/Tina2/V3/Configuration_adv.h
index 35695e2f79f..7e497aee7be 100644
--- a/config/examples/Weedo/Tina2/V3/Configuration_adv.h
+++ b/config/examples/Weedo/Tina2/V3/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Weistek/wt150/Configuration.h b/config/examples/Weistek/wt150/Configuration.h
index d6f38d5a8ac..88905af77af 100644
--- a/config/examples/Weistek/wt150/Configuration.h
+++ b/config/examples/Weistek/wt150/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Weistek/wt150/Configuration_adv.h b/config/examples/Weistek/wt150/Configuration_adv.h
index 11d14ea91d3..96ecb9a4ec3 100644
--- a/config/examples/Weistek/wt150/Configuration_adv.h
+++ b/config/examples/Weistek/wt150/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Zonestar/P802M/Configuration.h b/config/examples/Zonestar/P802M/Configuration.h
index 2a99e91fd2a..313a725f940 100644
--- a/config/examples/Zonestar/P802M/Configuration.h
+++ b/config/examples/Zonestar/P802M/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1477,7 +1478,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    5 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Zonestar/P802M/Configuration_adv.h b/config/examples/Zonestar/P802M/Configuration_adv.h
index dad5ccf48c2..d4e4385db47 100644
--- a/config/examples/Zonestar/P802M/Configuration_adv.h
+++ b/config/examples/Zonestar/P802M/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Zonestar/P802QR2/BigTreeTech SKR 1.4 Turbo (A4988)/Configuration.h b/config/examples/Zonestar/P802QR2/BigTreeTech SKR 1.4 Turbo (A4988)/Configuration.h
index 7ffce487dfd..7dcb9cf8a9c 100644
--- a/config/examples/Zonestar/P802QR2/BigTreeTech SKR 1.4 Turbo (A4988)/Configuration.h	
+++ b/config/examples/Zonestar/P802QR2/BigTreeTech SKR 1.4 Turbo (A4988)/Configuration.h	
@@ -110,7 +110,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -389,14 +389,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1482,7 +1483,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1652,6 +1654,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1689,8 +1692,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -2442,7 +2445,7 @@
 
 #define PREHEAT_2_LABEL       "PETG"
 #define PREHEAT_2_TEMP_HOTEND 230
-#define PREHEAT_2_TEMP_BED    80
+#define PREHEAT_2_TEMP_BED     80
 #define PREHEAT_2_TEMP_CHAMBER 35
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
diff --git a/config/examples/Zonestar/P802QR2/BigTreeTech SKR 1.4 Turbo (A4988)/Configuration_adv.h b/config/examples/Zonestar/P802QR2/BigTreeTech SKR 1.4 Turbo (A4988)/Configuration_adv.h
index 9300f848651..769db374b73 100644
--- a/config/examples/Zonestar/P802QR2/BigTreeTech SKR 1.4 Turbo (A4988)/Configuration_adv.h	
+++ b/config/examples/Zonestar/P802QR2/BigTreeTech SKR 1.4 Turbo (A4988)/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/Zonestar/P802QR2/BigTreeTech SKR 1.4 Turbo (TMC2209)/Configuration.h b/config/examples/Zonestar/P802QR2/BigTreeTech SKR 1.4 Turbo (TMC2209)/Configuration.h
old mode 100755
new mode 100644
index 6bf6fe5597d..decc31ab30f
--- a/config/examples/Zonestar/P802QR2/BigTreeTech SKR 1.4 Turbo (TMC2209)/Configuration.h	
+++ b/config/examples/Zonestar/P802QR2/BigTreeTech SKR 1.4 Turbo (TMC2209)/Configuration.h	
@@ -110,7 +110,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -389,14 +389,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1481,7 +1482,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1651,6 +1653,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1688,8 +1691,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/Zonestar/P802QR2/BigTreeTech SKR 1.4 Turbo (TMC2209)/Configuration_adv.h b/config/examples/Zonestar/P802QR2/BigTreeTech SKR 1.4 Turbo (TMC2209)/Configuration_adv.h
old mode 100755
new mode 100644
index 1527af13825..fe812a9bf77
--- a/config/examples/Zonestar/P802QR2/BigTreeTech SKR 1.4 Turbo (TMC2209)/Configuration_adv.h	
+++ b/config/examples/Zonestar/P802QR2/BigTreeTech SKR 1.4 Turbo (TMC2209)/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/Anycubic/Kossel Linear Plus/Configuration.h b/config/examples/delta/Anycubic/Kossel Linear Plus/Configuration.h
index 5472e8a9a3d..32ec8a60bf5 100644
--- a/config/examples/delta/Anycubic/Kossel Linear Plus/Configuration.h	
+++ b/config/examples/delta/Anycubic/Kossel Linear Plus/Configuration.h	
@@ -123,7 +123,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -402,14 +402,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1534,7 +1535,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1710,6 +1712,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1747,8 +1750,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   50 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1972,7 +1975,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/delta/Anycubic/Kossel Linear Plus/Configuration_adv.h b/config/examples/delta/Anycubic/Kossel Linear Plus/Configuration_adv.h
index b2b530d38b7..fee91effc45 100644
--- a/config/examples/delta/Anycubic/Kossel Linear Plus/Configuration_adv.h	
+++ b/config/examples/delta/Anycubic/Kossel Linear Plus/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1083,9 +1083,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1106,19 +1108,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1128,8 +1133,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1182,7 +1187,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1496,8 +1501,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1514,6 +1528,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1528,8 +1546,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1560,6 +1576,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2567,7 +2586,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2581,7 +2600,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2715,7 +2734,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4414,44 +4433,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4461,11 +4525,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4476,6 +4555,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4498,7 +4639,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/Anycubic/Kossel/Configuration.h b/config/examples/delta/Anycubic/Kossel/Configuration.h
index b90f829648d..7651c7b980f 100644
--- a/config/examples/delta/Anycubic/Kossel/Configuration.h
+++ b/config/examples/delta/Anycubic/Kossel/Configuration.h
@@ -123,7 +123,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -402,14 +402,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1539,7 +1540,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1715,6 +1717,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1752,8 +1755,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   50 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1977,7 +1980,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/delta/Anycubic/Kossel/Configuration_adv.h b/config/examples/delta/Anycubic/Kossel/Configuration_adv.h
index 981fab98443..500da1d433a 100644
--- a/config/examples/delta/Anycubic/Kossel/Configuration_adv.h
+++ b/config/examples/delta/Anycubic/Kossel/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/Anycubic/Predator/Configuration.h b/config/examples/delta/Anycubic/Predator/Configuration.h
index 1e9a5bb5207..66ff381d785 100644
--- a/config/examples/delta/Anycubic/Predator/Configuration.h
+++ b/config/examples/delta/Anycubic/Predator/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1485,7 +1486,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1655,6 +1657,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1692,8 +1695,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   50 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/delta/Anycubic/Predator/Configuration_adv.h b/config/examples/delta/Anycubic/Predator/Configuration_adv.h
index f9c74335408..35dc2114705 100644
--- a/config/examples/delta/Anycubic/Predator/Configuration_adv.h
+++ b/config/examples/delta/Anycubic/Predator/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1497,8 +1502,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1515,6 +1529,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1529,8 +1547,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1561,6 +1577,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2568,7 +2587,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2582,7 +2601,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2716,7 +2735,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4415,44 +4434,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4462,11 +4526,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4477,6 +4556,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4499,7 +4640,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/Dreammaker/Overlord/Configuration.h b/config/examples/delta/Dreammaker/Overlord/Configuration.h
index 20d42497c68..3dbbce5e4e5 100644
--- a/config/examples/delta/Dreammaker/Overlord/Configuration.h
+++ b/config/examples/delta/Dreammaker/Overlord/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1484,7 +1485,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1654,6 +1656,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1691,8 +1694,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES 15 // (mm) Z Clearance between probe points
@@ -1914,7 +1917,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/delta/Dreammaker/Overlord/Configuration_adv.h b/config/examples/delta/Dreammaker/Overlord/Configuration_adv.h
index 0255722f341..88a3e36502c 100644
--- a/config/examples/delta/Dreammaker/Overlord/Configuration_adv.h
+++ b/config/examples/delta/Dreammaker/Overlord/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/Dreammaker/Overlord_Pro/Configuration.h b/config/examples/delta/Dreammaker/Overlord_Pro/Configuration.h
index aae333a6483..62bd482120f 100644
--- a/config/examples/delta/Dreammaker/Overlord_Pro/Configuration.h
+++ b/config/examples/delta/Dreammaker/Overlord_Pro/Configuration.h
@@ -111,7 +111,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -390,14 +390,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1491,7 +1492,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1661,6 +1663,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1698,8 +1701,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES 15 // (mm) Z Clearance between probe points
@@ -1921,7 +1924,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/delta/Dreammaker/Overlord_Pro/Configuration_adv.h b/config/examples/delta/Dreammaker/Overlord_Pro/Configuration_adv.h
index 0255722f341..88a3e36502c 100644
--- a/config/examples/delta/Dreammaker/Overlord_Pro/Configuration_adv.h
+++ b/config/examples/delta/Dreammaker/Overlord_Pro/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/FLSUN/Q5-nano_v1/Configuration.h b/config/examples/delta/FLSUN/Q5-nano_v1/Configuration.h
index 43c96fc4a54..c7640ea4fb9 100644
--- a/config/examples/delta/FLSUN/Q5-nano_v1/Configuration.h
+++ b/config/examples/delta/FLSUN/Q5-nano_v1/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1486,7 +1487,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1656,6 +1658,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1693,8 +1696,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   30 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1916,7 +1919,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/delta/FLSUN/Q5-nano_v1/Configuration_adv.h b/config/examples/delta/FLSUN/Q5-nano_v1/Configuration_adv.h
index 2e2457f2677..f9d6c5a4cd4 100644
--- a/config/examples/delta/FLSUN/Q5-nano_v1/Configuration_adv.h
+++ b/config/examples/delta/FLSUN/Q5-nano_v1/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   #define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2273,14 +2292,14 @@
 #if ENABLED(BABYSTEPPING)
   //#define EP_BABYSTEPPING                 // M293/M294 babystepping with EMERGENCY_PARSER support
   //#define BABYSTEP_WITHOUT_HOMING
-  #define BABYSTEP_ALWAYS_AVAILABLE       // Allow babystepping at all times (not just during movement)
+  #define BABYSTEP_ALWAYS_AVAILABLE         // Allow babystepping at all times (not just during movement)
   //#define BABYSTEP_XY                     // Also enable X/Y Babystepping. Not supported on DELTA!
   //#define BABYSTEP_INVERT_Z               // Enable if Z babysteps should go the other way
   //#define BABYSTEP_MILLIMETER_UNITS       // Specify BABYSTEP_MULTIPLICATOR_(XY|Z) in mm instead of micro-steps
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4411,44 +4430,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4458,11 +4522,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4473,6 +4552,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4495,7 +4636,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/FLSUN/Q5-nano_v2/Configuration.h b/config/examples/delta/FLSUN/Q5-nano_v2/Configuration.h
index f694e886579..681c8481301 100644
--- a/config/examples/delta/FLSUN/Q5-nano_v2/Configuration.h
+++ b/config/examples/delta/FLSUN/Q5-nano_v2/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1484,7 +1485,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1654,6 +1656,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1691,8 +1694,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   30 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/delta/FLSUN/Q5-nano_v2/Configuration_adv.h b/config/examples/delta/FLSUN/Q5-nano_v2/Configuration_adv.h
index df3e109acdc..e8150eacc8f 100644
--- a/config/examples/delta/FLSUN/Q5-nano_v2/Configuration_adv.h
+++ b/config/examples/delta/FLSUN/Q5-nano_v2/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2565,7 +2584,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2579,7 +2598,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/FLSUN/QQ-S/Configuration.h b/config/examples/delta/FLSUN/QQ-S/Configuration.h
index 07abf7de33f..1c9e18498f3 100644
--- a/config/examples/delta/FLSUN/QQ-S/Configuration.h
+++ b/config/examples/delta/FLSUN/QQ-S/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1485,7 +1486,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1655,6 +1657,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1692,8 +1695,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   30 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1915,7 +1918,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
@@ -2445,7 +2448,7 @@
 
 #define PREHEAT_2_LABEL       "PETG"
 #define PREHEAT_2_TEMP_HOTEND 235
-#define PREHEAT_2_TEMP_BED    80
+#define PREHEAT_2_TEMP_BED     80
 #define PREHEAT_2_TEMP_CHAMBER 35
 #define PREHEAT_2_FAN_SPEED   0 // Value from 0 to 255
 
diff --git a/config/examples/delta/FLSUN/QQ-S/Configuration_adv.h b/config/examples/delta/FLSUN/QQ-S/Configuration_adv.h
index e1ff364836d..6ee4bf709bc 100644
--- a/config/examples/delta/FLSUN/QQ-S/Configuration_adv.h
+++ b/config/examples/delta/FLSUN/QQ-S/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2280,7 +2299,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/FLSUN/QQS-Pro/Configuration.h b/config/examples/delta/FLSUN/QQS-Pro/Configuration.h
index 1dc36cb8d84..9822354f0e2 100644
--- a/config/examples/delta/FLSUN/QQS-Pro/Configuration.h
+++ b/config/examples/delta/FLSUN/QQS-Pro/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1485,7 +1486,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1655,6 +1657,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1692,8 +1695,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   20 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES 15 // (mm) Z Clearance between probe points
diff --git a/config/examples/delta/FLSUN/QQS-Pro/Configuration_adv.h b/config/examples/delta/FLSUN/QQS-Pro/Configuration_adv.h
index 67f74f656c3..c9b0d28113f 100644
--- a/config/examples/delta/FLSUN/QQS-Pro/Configuration_adv.h
+++ b/config/examples/delta/FLSUN/QQS-Pro/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 6     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     6 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1496,8 +1501,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  #define PROBE_OFFSET_WIZARD         // Add a Probe Z Offset calibration option to the LCD menu
+  #define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1514,6 +1528,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1528,8 +1546,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1560,6 +1576,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2274,14 +2293,14 @@
 #if ENABLED(BABYSTEPPING)
   //#define EP_BABYSTEPPING                 // M293/M294 babystepping with EMERGENCY_PARSER support
   //#define BABYSTEP_WITHOUT_HOMING
-  #define BABYSTEP_ALWAYS_AVAILABLE       // Allow babystepping at all times (not just during movement)
+  #define BABYSTEP_ALWAYS_AVAILABLE         // Allow babystepping at all times (not just during movement)
   //#define BABYSTEP_XY                     // Also enable X/Y Babystepping. Not supported on DELTA!
   //#define BABYSTEP_INVERT_Z               // Enable if Z babysteps should go the other way
   //#define BABYSTEP_MILLIMETER_UNITS       // Specify BABYSTEP_MULTIPLICATOR_(XY|Z) in mm instead of micro-steps
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   //#define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2567,7 +2586,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2581,7 +2600,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2715,7 +2734,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/FLSUN/auto_calibrate/Configuration.h b/config/examples/delta/FLSUN/auto_calibrate/Configuration.h
index eb0c0d8e9fb..659d143fce4 100644
--- a/config/examples/delta/FLSUN/auto_calibrate/Configuration.h
+++ b/config/examples/delta/FLSUN/auto_calibrate/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1485,7 +1486,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1658,6 +1660,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1695,8 +1698,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    5 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  2 // (mm) Z Clearance between probe points
diff --git a/config/examples/delta/FLSUN/auto_calibrate/Configuration_adv.h b/config/examples/delta/FLSUN/auto_calibrate/Configuration_adv.h
index aec766768e3..ec0c95b9338 100644
--- a/config/examples/delta/FLSUN/auto_calibrate/Configuration_adv.h
+++ b/config/examples/delta/FLSUN/auto_calibrate/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/FLSUN/kossel/Configuration.h b/config/examples/delta/FLSUN/kossel/Configuration.h
index 4e424d3cf34..3d67dd9b50a 100644
--- a/config/examples/delta/FLSUN/kossel/Configuration.h
+++ b/config/examples/delta/FLSUN/kossel/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1485,7 +1486,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1657,6 +1659,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1694,8 +1697,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    5 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  2 // (mm) Z Clearance between probe points
diff --git a/config/examples/delta/FLSUN/kossel/Configuration_adv.h b/config/examples/delta/FLSUN/kossel/Configuration_adv.h
index aec766768e3..ec0c95b9338 100644
--- a/config/examples/delta/FLSUN/kossel/Configuration_adv.h
+++ b/config/examples/delta/FLSUN/kossel/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/FLSUN/kossel_mini/Configuration.h b/config/examples/delta/FLSUN/kossel_mini/Configuration.h
index 209da6126a4..42eabe05ff8 100644
--- a/config/examples/delta/FLSUN/kossel_mini/Configuration.h
+++ b/config/examples/delta/FLSUN/kossel_mini/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1485,7 +1486,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1657,6 +1659,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1694,8 +1697,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   50 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/delta/FLSUN/kossel_mini/Configuration_adv.h b/config/examples/delta/FLSUN/kossel_mini/Configuration_adv.h
index 0bd63dcd572..661b2e07e6f 100644
--- a/config/examples/delta/FLSUN/kossel_mini/Configuration_adv.h
+++ b/config/examples/delta/FLSUN/kossel_mini/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/Geeetech/G2/Configuration.h b/config/examples/delta/Geeetech/G2/Configuration.h
index 3aabe403fe7..55de79dbc1b 100644
--- a/config/examples/delta/Geeetech/G2/Configuration.h
+++ b/config/examples/delta/Geeetech/G2/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1485,7 +1486,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1655,6 +1657,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1692,8 +1695,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1915,7 +1918,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/delta/Geeetech/G2/Configuration_adv.h b/config/examples/delta/Geeetech/G2/Configuration_adv.h
index 49b726a4ba7..d4531303641 100644
--- a/config/examples/delta/Geeetech/G2/Configuration_adv.h
+++ b/config/examples/delta/Geeetech/G2/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 50
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   #define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2280,7 +2299,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 2000   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4410,44 +4429,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4457,11 +4521,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4472,6 +4551,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4494,7 +4635,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/Geeetech/G2Pro/Configuration.h b/config/examples/delta/Geeetech/G2Pro/Configuration.h
index 32aeecf714a..0fd2db7a040 100644
--- a/config/examples/delta/Geeetech/G2Pro/Configuration.h
+++ b/config/examples/delta/Geeetech/G2Pro/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1485,7 +1486,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1655,6 +1657,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1692,8 +1695,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1915,7 +1918,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/delta/Geeetech/G2Pro/Configuration_adv.h b/config/examples/delta/Geeetech/G2Pro/Configuration_adv.h
index 49b726a4ba7..d4531303641 100644
--- a/config/examples/delta/Geeetech/G2Pro/Configuration_adv.h
+++ b/config/examples/delta/Geeetech/G2Pro/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 50
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   #define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2280,7 +2299,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 2000   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4410,44 +4429,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4457,11 +4521,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4472,6 +4551,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4494,7 +4635,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/Geeetech/G2S/Configuration.h b/config/examples/delta/Geeetech/G2S/Configuration.h
index 78d7f22d8f3..9b048598cce 100644
--- a/config/examples/delta/Geeetech/G2S/Configuration.h
+++ b/config/examples/delta/Geeetech/G2S/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1485,7 +1486,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1655,6 +1657,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1692,8 +1695,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1915,7 +1918,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/delta/Geeetech/G2S/Configuration_adv.h b/config/examples/delta/Geeetech/G2S/Configuration_adv.h
index 49b726a4ba7..d4531303641 100644
--- a/config/examples/delta/Geeetech/G2S/Configuration_adv.h
+++ b/config/examples/delta/Geeetech/G2S/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 50
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   #define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2280,7 +2299,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 2000   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4410,44 +4429,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4457,11 +4521,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4472,6 +4551,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4494,7 +4635,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/Geeetech/G2SPro/Configuration.h b/config/examples/delta/Geeetech/G2SPro/Configuration.h
index a09a4ec94eb..4e76bf2355a 100644
--- a/config/examples/delta/Geeetech/G2SPro/Configuration.h
+++ b/config/examples/delta/Geeetech/G2SPro/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1485,7 +1486,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1655,6 +1657,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1692,8 +1695,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1915,7 +1918,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
diff --git a/config/examples/delta/Geeetech/G2SPro/Configuration_adv.h b/config/examples/delta/Geeetech/G2SPro/Configuration_adv.h
index 49b726a4ba7..d4531303641 100644
--- a/config/examples/delta/Geeetech/G2SPro/Configuration_adv.h
+++ b/config/examples/delta/Geeetech/G2SPro/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 50
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   #define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2280,7 +2299,7 @@
   #define BABYSTEP_MULTIPLICATOR_Z  1       // (steps or mm) Steps or millimeter distance for each Z babystep
   #define BABYSTEP_MULTIPLICATOR_XY 1       // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 2000   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4410,44 +4429,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4457,11 +4521,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4472,6 +4551,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4494,7 +4635,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/Geeetech/Rostock 301/Configuration.h b/config/examples/delta/Geeetech/Rostock 301/Configuration.h
index 395be3904b7..3ace8e430e0 100644
--- a/config/examples/delta/Geeetech/Rostock 301/Configuration.h	
+++ b/config/examples/delta/Geeetech/Rostock 301/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1485,7 +1486,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1655,6 +1657,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1692,8 +1695,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/delta/Geeetech/Rostock 301/Configuration_adv.h b/config/examples/delta/Geeetech/Rostock 301/Configuration_adv.h
index c45255d3a01..ca2a9ae8f65 100644
--- a/config/examples/delta/Geeetech/Rostock 301/Configuration_adv.h	
+++ b/config/examples/delta/Geeetech/Rostock 301/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/Hatchbox_Alpha/Configuration.h b/config/examples/delta/Hatchbox_Alpha/Configuration.h
index 9edd0b9e92b..37fb80cc4e5 100644
--- a/config/examples/delta/Hatchbox_Alpha/Configuration.h
+++ b/config/examples/delta/Hatchbox_Alpha/Configuration.h
@@ -113,7 +113,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -392,14 +392,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1490,7 +1491,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1660,6 +1662,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1697,8 +1700,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/delta/Hatchbox_Alpha/Configuration_adv.h b/config/examples/delta/Hatchbox_Alpha/Configuration_adv.h
index d3ac8709418..bf0dd7cbc00 100644
--- a/config/examples/delta/Hatchbox_Alpha/Configuration_adv.h
+++ b/config/examples/delta/Hatchbox_Alpha/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/MKS/SBASE/Configuration.h b/config/examples/delta/MKS/SBASE/Configuration.h
index 803e1fc740a..4e004b8d61c 100644
--- a/config/examples/delta/MKS/SBASE/Configuration.h
+++ b/config/examples/delta/MKS/SBASE/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1485,7 +1486,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1655,6 +1657,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1692,8 +1695,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/delta/MKS/SBASE/Configuration_adv.h b/config/examples/delta/MKS/SBASE/Configuration_adv.h
index 88f85e27b44..dac210fdf1e 100644
--- a/config/examples/delta/MKS/SBASE/Configuration_adv.h
+++ b/config/examples/delta/MKS/SBASE/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 50        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 6     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        50 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     6 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/Malyan M300/Configuration.h b/config/examples/delta/Malyan M300/Configuration.h
index b9607dd01a1..8cd5e6b90bf 100644
--- a/config/examples/delta/Malyan M300/Configuration.h	
+++ b/config/examples/delta/Malyan M300/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1478,7 +1479,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1648,6 +1650,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1685,8 +1688,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   50 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/delta/Malyan M300/Configuration_adv.h b/config/examples/delta/Malyan M300/Configuration_adv.h
index 8f858fb1d1c..609d005573e 100644
--- a/config/examples/delta/Malyan M300/Configuration_adv.h	
+++ b/config/examples/delta/Malyan M300/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/Tevo Little Monster/Configuration.h b/config/examples/delta/Tevo Little Monster/Configuration.h
index e91168b1499..eaa06c1b668 100644
--- a/config/examples/delta/Tevo Little Monster/Configuration.h	
+++ b/config/examples/delta/Tevo Little Monster/Configuration.h	
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1486,7 +1487,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1656,6 +1658,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1693,8 +1696,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/delta/Tevo Little Monster/Configuration_adv.h b/config/examples/delta/Tevo Little Monster/Configuration_adv.h
index 50be8fcb83d..5606631570e 100644
--- a/config/examples/delta/Tevo Little Monster/Configuration_adv.h	
+++ b/config/examples/delta/Tevo Little Monster/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2273,14 +2292,14 @@
 #if ENABLED(BABYSTEPPING)
   //#define EP_BABYSTEPPING                 // M293/M294 babystepping with EMERGENCY_PARSER support
   //#define BABYSTEP_WITHOUT_HOMING
-  #define BABYSTEP_ALWAYS_AVAILABLE       // Allow babystepping at all times (not just during movement)
+  #define BABYSTEP_ALWAYS_AVAILABLE         // Allow babystepping at all times (not just during movement)
   //#define BABYSTEP_XY                     // Also enable X/Y Babystepping. Not supported on DELTA!
   //#define BABYSTEP_INVERT_Z               // Enable if Z babysteps should go the other way
-  #define BABYSTEP_MILLIMETER_UNITS       // Specify BABYSTEP_MULTIPLICATOR_(XY|Z) in mm instead of micro-steps
-  #define BABYSTEP_MULTIPLICATOR_Z  0.01       // (steps or mm) Steps or millimeter distance for each Z babystep
-  #define BABYSTEP_MULTIPLICATOR_XY 0.1       // (steps or mm) Steps or millimeter distance for each XY babystep
+  #define BABYSTEP_MILLIMETER_UNITS         // Specify BABYSTEP_MULTIPLICATOR_(XY|Z) in mm instead of micro-steps
+  #define BABYSTEP_MULTIPLICATOR_Z  0.01    // (steps or mm) Steps or millimeter distance for each Z babystep
+  #define BABYSTEP_MULTIPLICATOR_XY 0.1     // (steps or mm) Steps or millimeter distance for each XY babystep
 
-  #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
+  #define DOUBLECLICK_FOR_Z_BABYSTEPPING    // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
     #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
                                             // Note: Extra time may be added to mitigate controller latency.
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/Velleman/K8800/Configuration.h b/config/examples/delta/Velleman/K8800/Configuration.h
index 5aacccee853..8378d451d43 100644
--- a/config/examples/delta/Velleman/K8800/Configuration.h
+++ b/config/examples/delta/Velleman/K8800/Configuration.h
@@ -119,7 +119,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -398,14 +398,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1512,7 +1513,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1684,6 +1686,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1721,8 +1724,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE    0 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/delta/Velleman/K8800/Configuration_adv.h b/config/examples/delta/Velleman/K8800/Configuration_adv.h
index 557dddf39ea..a9ab81139b3 100644
--- a/config/examples/delta/Velleman/K8800/Configuration_adv.h
+++ b/config/examples/delta/Velleman/K8800/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   #define ADAPTIVE_FAN_SLOWING                // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1496,8 +1501,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1514,6 +1528,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1528,8 +1546,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1560,6 +1576,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2715,7 +2734,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4417,44 +4436,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4464,11 +4528,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4479,6 +4558,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4501,7 +4642,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/generic/Configuration.h b/config/examples/delta/generic/Configuration.h
index fdb5521489f..f98ad172104 100644
--- a/config/examples/delta/generic/Configuration.h
+++ b/config/examples/delta/generic/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1485,7 +1486,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1655,6 +1657,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1692,8 +1695,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/delta/generic/Configuration_adv.h b/config/examples/delta/generic/Configuration_adv.h
index 0bd63dcd572..661b2e07e6f 100644
--- a/config/examples/delta/generic/Configuration_adv.h
+++ b/config/examples/delta/generic/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/kossel_clear/Configuration.h b/config/examples/delta/kossel_clear/Configuration.h
index 70b4fc9cbd6..855d81468ac 100644
--- a/config/examples/delta/kossel_clear/Configuration.h
+++ b/config/examples/delta/kossel_clear/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1485,7 +1486,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1656,6 +1658,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1693,8 +1696,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   50 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
@@ -1916,7 +1919,7 @@
 #endif
 
 #if ANY(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS)
-  #define SOFT_ENDSTOPS_MENU_ITEM  // Enable/Disable software endstops from the LCD
+  #define SOFT_ENDSTOPS_MENU_ITEM    // Enable/Disable software endstops from the LCD
 #endif
 
 /**
@@ -2447,7 +2450,7 @@
 
 #define PREHEAT_2_LABEL       "ABS"
 #define PREHEAT_2_TEMP_HOTEND 240
-#define PREHEAT_2_TEMP_BED    70
+#define PREHEAT_2_TEMP_BED     70
 #define PREHEAT_2_TEMP_CHAMBER 35
 #define PREHEAT_2_FAN_SPEED   255 // Value from 0 to 255
 
diff --git a/config/examples/delta/kossel_clear/Configuration_adv.h b/config/examples/delta/kossel_clear/Configuration_adv.h
index 1d39a655111..c25ea3889cd 100644
--- a/config/examples/delta/kossel_clear/Configuration_adv.h
+++ b/config/examples/delta/kossel_clear/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2566,7 +2585,7 @@
 
 /**
  * Minimum stepper driver pulse width (in ns)
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *     100 : Minimum for TMC2xxx stepper drivers
  *     500 : Minimum for LV8729
  *    1000 : Minimum for A4988 and A5984 stepper drivers
@@ -2580,7 +2599,7 @@
 
 /**
  * Maximum stepping rate (in Hz) the stepper driver allows
- * If undefined, these defaults (from Conditionals_adv.h) apply:
+ * If undefined, these defaults (from Conditionals-4-adv.h) apply:
  *  5000000 : Maximum for TMC2xxx stepper drivers
  *  1000000 : Maximum for LV8729 stepper driver
  *   500000 : Maximum for A4988 stepper driver
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4414,44 +4433,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4461,11 +4525,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4476,6 +4555,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4498,7 +4639,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/kossel_mini/Configuration.h b/config/examples/delta/kossel_mini/Configuration.h
index 1b686d7d794..7ce8d95636c 100644
--- a/config/examples/delta/kossel_mini/Configuration.h
+++ b/config/examples/delta/kossel_mini/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1485,7 +1486,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1657,6 +1659,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1694,8 +1697,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   50 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/delta/kossel_mini/Configuration_adv.h b/config/examples/delta/kossel_mini/Configuration_adv.h
index df3e109acdc..196ebfa29c4 100644
--- a/config/examples/delta/kossel_mini/Configuration_adv.h
+++ b/config/examples/delta/kossel_mini/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/kossel_pro/Configuration.h b/config/examples/delta/kossel_pro/Configuration.h
index 3b738a16f46..21038b6f056 100644
--- a/config/examples/delta/kossel_pro/Configuration.h
+++ b/config/examples/delta/kossel_pro/Configuration.h
@@ -112,7 +112,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -391,14 +391,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1497,7 +1498,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1675,6 +1677,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1712,8 +1715,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE  100 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/delta/kossel_pro/Configuration_adv.h b/config/examples/delta/kossel_pro/Configuration_adv.h
index df3e109acdc..196ebfa29c4 100644
--- a/config/examples/delta/kossel_pro/Configuration_adv.h
+++ b/config/examples/delta/kossel_pro/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/delta/kossel_xl/Configuration.h b/config/examples/delta/kossel_xl/Configuration.h
index 7b9184a454c..98cc3fc4bfc 100644
--- a/config/examples/delta/kossel_xl/Configuration.h
+++ b/config/examples/delta/kossel_xl/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1491,7 +1492,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1661,6 +1663,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1698,8 +1701,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   20 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES 10 // (mm) Z Clearance between probe points
diff --git a/config/examples/delta/kossel_xl/Configuration_adv.h b/config/examples/delta/kossel_xl/Configuration_adv.h
index cf62c426aac..8a2922fcf61 100644
--- a/config/examples/delta/kossel_xl/Configuration_adv.h
+++ b/config/examples/delta/kossel_xl/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1495,8 +1500,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1513,6 +1527,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1527,8 +1545,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1559,6 +1575,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2714,7 +2733,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4413,44 +4432,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4460,11 +4524,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4475,6 +4554,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4497,7 +4638,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/gCreate/gMax1.5+/Configuration.h b/config/examples/gCreate/gMax1.5+/Configuration.h
index 72168d02b0f..7364637a06b 100644
--- a/config/examples/gCreate/gMax1.5+/Configuration.h
+++ b/config/examples/gCreate/gMax1.5+/Configuration.h
@@ -112,7 +112,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -391,14 +391,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1484,7 +1485,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1654,6 +1656,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1691,8 +1694,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  6 // (mm) Z Clearance between probe points
diff --git a/config/examples/gCreate/gMax1.5+/Configuration_adv.h b/config/examples/gCreate/gMax1.5+/Configuration_adv.h
index dc61b2ee3a2..17188e7ec53 100644
--- a/config/examples/gCreate/gMax1.5+/Configuration_adv.h
+++ b/config/examples/gCreate/gMax1.5+/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 50        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 3     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        50 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     3 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/linear_axes/Octopus 8 LINEAR_AXES/Configuration.h b/config/examples/linear_axes/Octopus 8 LINEAR_AXES/Configuration.h
index 81dd4644fb3..0b6b2665f6c 100644
--- a/config/examples/linear_axes/Octopus 8 LINEAR_AXES/Configuration.h	
+++ b/config/examples/linear_axes/Octopus 8 LINEAR_AXES/Configuration.h	
@@ -120,7 +120,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -399,14 +399,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1489,7 +1490,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1659,6 +1661,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1696,8 +1699,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/linear_axes/Octopus 8 LINEAR_AXES/Configuration_adv.h b/config/examples/linear_axes/Octopus 8 LINEAR_AXES/Configuration_adv.h
index a1e28953f21..477e6b54391 100644
--- a/config/examples/linear_axes/Octopus 8 LINEAR_AXES/Configuration_adv.h	
+++ b/config/examples/linear_axes/Octopus 8 LINEAR_AXES/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/linear_axes/RAMPS 5 LINEAR_AXES/Configuration.h b/config/examples/linear_axes/RAMPS 5 LINEAR_AXES/Configuration.h
index 8c647b7822e..79bfe50e289 100644
--- a/config/examples/linear_axes/RAMPS 5 LINEAR_AXES/Configuration.h	
+++ b/config/examples/linear_axes/RAMPS 5 LINEAR_AXES/Configuration.h	
@@ -110,7 +110,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -374,14 +374,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1464,7 +1465,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1634,6 +1636,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1671,8 +1674,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   10 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/linear_axes/RAMPS 5 LINEAR_AXES/Configuration_adv.h b/config/examples/linear_axes/RAMPS 5 LINEAR_AXES/Configuration_adv.h
index 53917df3151..0f9ae2271ce 100644
--- a/config/examples/linear_axes/RAMPS 5 LINEAR_AXES/Configuration_adv.h	
+++ b/config/examples/linear_axes/RAMPS 5 LINEAR_AXES/Configuration_adv.h	
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/makibox/Configuration.h b/config/examples/makibox/Configuration.h
index d72044793ee..8dde238479e 100644
--- a/config/examples/makibox/Configuration.h
+++ b/config/examples/makibox/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1480,7 +1481,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1650,6 +1652,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1687,8 +1690,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/makibox/Configuration_adv.h b/config/examples/makibox/Configuration_adv.h
index defef3395ef..fd050e1e6c2 100644
--- a/config/examples/makibox/Configuration_adv.h
+++ b/config/examples/makibox/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings
diff --git a/config/examples/tvrrug/Round2/Configuration.h b/config/examples/tvrrug/Round2/Configuration.h
index 2596d5c1748..2bf4a18fc02 100644
--- a/config/examples/tvrrug/Round2/Configuration.h
+++ b/config/examples/tvrrug/Round2/Configuration.h
@@ -108,7 +108,7 @@
 
 /**
  * Select a third serial port on the board to use for communication with the host.
- * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * Currently supported for AVR, DUE, SAMD51, LPC1768/9, STM32/STM32F1/HC32, and Teensy 4.x
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
  */
 //#define SERIAL_PORT_3 1
@@ -387,14 +387,15 @@
  *   PRUSA_MMU1           : Průša MMU1 (The "multiplexer" version)
  *   PRUSA_MMU2           : Průša MMU2
  *   PRUSA_MMU2S          : Průša MMU2S (Requires MK3S extruder with motion sensor, EXTRUDERS = 5)
+ *   PRUSA_MMU3           : Průša MMU3  (Requires MK3S extruder with motion sensor and MMU firmware version 3.x.x, EXTRUDERS = 5)
  *   EXTENDABLE_EMU_MMU2  : MMU with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *   EXTENDABLE_EMU_MMU2S : MMUS with configurable number of filaments (ERCF, SMuFF or similar with Průša MMU2 compatible firmware)
  *
  * Requires NOZZLE_PARK_FEATURE to park print head in case MMU unit fails.
  * See additional options in Configuration_adv.h.
- * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
+ * :["PRUSA_MMU1", "PRUSA_MMU2", "PRUSA_MMU2S", "PRUSA_MMU3", "EXTENDABLE_EMU_MMU2", "EXTENDABLE_EMU_MMU2S"]
  */
-//#define MMU_MODEL PRUSA_MMU2
+//#define MMU_MODEL PRUSA_MMU3
 
 // @section psu control
 
@@ -1484,7 +1485,8 @@
  * A lightweight, solenoid-driven probe.
  * For information about this sensor https://github.com/bigtreetech/MicroProbe
  *
- * Also requires: PROBE_ENABLE_DISABLE
+ * Also requires PROBE_ENABLE_DISABLE
+ * With FT_MOTION requires ENDSTOP_INTERRUPTS_FEATURE
  */
 //#define BIQU_MICROPROBE_V1  // Triggers HIGH
 //#define BIQU_MICROPROBE_V2  // Triggers LOW
@@ -1654,6 +1656,7 @@
   #define PROBE_TARE_DELAY 200    // (ms) Delay after tare before
   #define PROBE_TARE_STATE HIGH   // State to write pin for tare
   //#define PROBE_TARE_PIN PA5    // Override default pin
+  //#define PROBE_TARE_MENU       // Display a menu item to tare the probe
   #if ENABLED(PROBE_ACTIVATION_SWITCH)
     //#define PROBE_TARE_ONLY_WHILE_INACTIVE  // Fail to tare/probe if PROBE_ACTIVATION_SWITCH is active
   #endif
@@ -1691,8 +1694,8 @@
  * probe Z Offset set with NOZZLE_TO_PROBE_OFFSET, M851, or the LCD.
  * Only integer values >= 1 are valid here.
  *
- * Example: `M851 Z-5` with a CLEARANCE of 4  =>  9mm from bed to nozzle.
- *     But: `M851 Z+1` with a CLEARANCE of 2  =>  2mm from bed to nozzle.
+ * Example: 'M851 Z-5' with a CLEARANCE of 4  =>  9mm from bed to nozzle.
+ *     But: 'M851 Z+1' with a CLEARANCE of 2  =>  2mm from bed to nozzle.
  */
 #define Z_CLEARANCE_DEPLOY_PROBE   15 // (mm) Z Clearance for Deploy/Stow
 #define Z_CLEARANCE_BETWEEN_PROBES  5 // (mm) Z Clearance between probe points
diff --git a/config/examples/tvrrug/Round2/Configuration_adv.h b/config/examples/tvrrug/Round2/Configuration_adv.h
index 9f2e52ce16d..f3e559c1004 100644
--- a/config/examples/tvrrug/Round2/Configuration_adv.h
+++ b/config/examples/tvrrug/Round2/Configuration_adv.h
@@ -305,8 +305,8 @@
  * THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
  */
 #if ALL(HAS_HOTEND, THERMAL_PROTECTION_HOTENDS)
-  #define THERMAL_PROTECTION_PERIOD 40        // (seconds)
-  #define THERMAL_PROTECTION_HYSTERESIS 4     // (°C)
+  #define THERMAL_PROTECTION_PERIOD        40 // (seconds)
+  #define THERMAL_PROTECTION_HYSTERESIS     4 // (°C)
 
   //#define ADAPTIVE_FAN_SLOWING              // Slow down the part-cooling fan if the temperature drops
   #if ENABLED(ADAPTIVE_FAN_SLOWING)
@@ -1082,9 +1082,11 @@
   #define HOME_AFTER_G34
 #endif
 
-//
-// Add the G35 command to read bed corners to help adjust screws. Requires a bed probe.
-//
+/**
+ * Assisted Tramming
+ *
+ * Add the G35 command to measure bed corners and help adjust screws. Requires a bed probe.
+ */
 //#define ASSISTED_TRAMMING
 #if ENABLED(ASSISTED_TRAMMING)
 
@@ -1105,19 +1107,22 @@
   //#define ASSISTED_TRAMMING_WAIT_POSITION { X_CENTER, Y_CENTER, 30 } // Move the nozzle out of the way for adjustment
 
   /**
-   * Screw thread:
-   *   M3: 30 = Clockwise, 31 = Counter-Clockwise
-   *   M4: 40 = Clockwise, 41 = Counter-Clockwise
-   *   M5: 50 = Clockwise, 51 = Counter-Clockwise
+   * Screw Thread. Use one of the following defines:
+   *
+   *   M3_CW = M3 Clockwise, M3_CCW = M3 Counter-Clockwise
+   *   M4_CW = M3 Clockwise, M4_CCW = M4 Counter-Clockwise
+   *   M5_CW = M3 Clockwise, M5_CCW = M5 Counter-Clockwise
+   *
+   * :{'M3_CW':'M3 Clockwise','M3_CCW':'M3 Counter-Clockwise','M4_CW':'M4 Clockwise','M4_CCW':'M4 Counter-Clockwise','M5_CW':'M5 Clockwise','M5_CCW':'M5 Counter-Clockwise'}
    */
-  #define TRAMMING_SCREW_THREAD 30
+  #define TRAMMING_SCREW_THREAD M3_CW
 
 #endif
 
 // @section motion control
 
 /**
- * Fixed-time-based Motion Control -- EXPERIMENTAL
+ * Fixed-time-based Motion Control -- BETA FEATURE
  * Enable/disable and set parameters with G-code M493.
  * See ft_types.h for named values used by FTM options.
  */
@@ -1127,8 +1132,8 @@
   #define FTM_DEFAULT_DYNFREQ_MODE dynFreqMode_DISABLED // Default mode of dynamic frequency calculation. (DISABLED, Z_BASED, MASS_BASED)
   #define FTM_DEFAULT_SHAPER_X      ftMotionShaper_NONE // Default shaper mode on X axis (NONE, ZV, ZVD, ZVDD, ZVDDD, EI, 2HEI, 3HEI, MZV)
   #define FTM_DEFAULT_SHAPER_Y      ftMotionShaper_NONE // Default shaper mode on Y axis
-  #define FTM_SHAPING_DEFAULT_X_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
-  #define FTM_SHAPING_DEFAULT_Y_FREQ   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_X   37.0f      // (Hz) Default peak frequency used by input shapers
+  #define FTM_SHAPING_DEFAULT_FREQ_Y   37.0f      // (Hz) Default peak frequency used by input shapers
   #define FTM_LINEAR_ADV_DEFAULT_ENA   false      // Default linear advance enable (true) or disable (false)
   #define FTM_LINEAR_ADV_DEFAULT_K      0         // Default linear advance gain, integer value. (Acceleration-based scaling factor.)
   #define FTM_SHAPING_ZETA_X            0.1f      // Zeta used by input shapers for X axis
@@ -1181,7 +1186,7 @@
 #endif
 
 /**
- * Input Shaping -- EXPERIMENTAL
+ * Input Shaping
  *
  * Zero Vibration (ZV) Input Shaping for X and/or Y movements.
  *
@@ -1494,8 +1499,17 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
+/**
+ * Probe Offset Wizard
+ * Add a Probe Z Offset calibration option to the LCD menu.
+ * Use this helper to get a perfect 'M851 Z' probe offset.
+ * When launched this powerful wizard:
+ *  - Measures the bed height at the configured position with the probe.
+ *  - Moves the nozzle to the same position for a "paper" measurement.
+ *  - The difference is used to set the probe Z offset.
+ */
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
-  //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
+  //#define PROBE_OFFSET_WIZARD
   #if ENABLED(PROBE_OFFSET_WIZARD)
     /**
      * Enable to init the Probe Z-Offset when starting the Wizard.
@@ -1512,6 +1526,10 @@
 #if HAS_MARLINUI_MENU
 
   #if HAS_BED_PROBE
+
+    // Show Deploy / Stow Probe options in the Motion menu.
+    #define PROBE_DEPLOY_STOW_MENU
+
     // Add calibration in the Probe Offsets menu to compensate for X-axis twist.
     //#define X_AXIS_TWIST_COMPENSATION
     #if ENABLED(X_AXIS_TWIST_COMPENSATION)
@@ -1526,8 +1544,6 @@
       #define XATC_Z_OFFSETS { 0, 0, 0 }    // Z offsets for X axis sample points
     #endif
 
-    // Show Deploy / Stow Probe options in the Motion menu.
-    #define PROBE_DEPLOY_STOW_MENU
   #endif
 
   // Include a page of printer information in the LCD Main Menu
@@ -1558,6 +1574,9 @@
   // BACK menu items keep the highlight at the top
   //#define TURBO_BACK_MENU_ITEM
 
+  // BACK menu items show "Back" instead of the previous menu name
+  //#define GENERIC_BACK_MENU_ITEM
+
   // Insert a menu for preheating at the top level to allow for quick access
   //#define PREHEAT_SHORTCUT_MENU_ITEM
 
@@ -2713,7 +2732,7 @@
 
 /**
  * Set the number of proportional font spaces required to fill up a typical character space.
- * This can help to better align the output of commands like `G29 O` Mesh Output.
+ * This can help to better align the output of commands like 'G29 O' Mesh Output.
  *
  * For clients that use a fixed-width font (like OctoPrint), leave this set to 1.0.
  * Otherwise, adjust according to your client and font.
@@ -4412,44 +4431,89 @@
   //#define E_MUX0_PIN 40  // Always Required
   //#define E_MUX1_PIN 42  // Needed for 3 to 8 inputs
   //#define E_MUX2_PIN 44  // Needed for 5 to 8 inputs
-#elif HAS_PRUSA_MMU2
-  // Serial port used for communication with MMU2.
+#elif HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
+  // Common settings for MMU2/MMU2S/MMU3
+  // Serial port used for communication with MMU2/MMU2S/MMU3.
   #define MMU2_SERIAL_PORT 2
+  #define MMU_BAUD 115200
 
   // Use hardware reset for MMU if a pin is defined for it
   //#define MMU2_RST_PIN 23
 
-  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
-  //#define MMU2_MODE_12V
+  #if HAS_PRUSA_MMU2
+    // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+    //#define MMU2_MODE_12V
 
-  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
-  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+    // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+    #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+  #endif
 
-  // Add an LCD menu for MMU2
-  //#define MMU2_MENUS
+  // Add an LCD menu for MMU2/MMU2S/MMU3
+  //#define MMU_MENUS
 
   // Settings for filament load / unload from the LCD menu.
   // This is for Průša MK3-style extruders. Customize for your hardware.
   #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+
+  /**
+   * ------------
+   * MMU2 / MMU2S
+   * ------------
+   * MMU2 sequences use mm/min. Not compatible with MMU3 (see below).
+   * #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+   *   {  4.4,  871 }, \
+   *   { 10.0, 1393 }, \
+   *   {  4.4,  871 }, \
+   *   { 10.0,  198 }
+   */
+
+  /* #define MMU2_RAMMING_SEQUENCE \
+   *   {   1.0, 1000 }, \
+   *   {   1.0, 1500 }, \
+   *   {   2.0, 2000 }, \
+   *   {   1.5, 3000 }, \
+   *   {   2.5, 4000 }, \
+   *   { -15.0, 5000 }, \
+   *   { -14.0, 1200 }, \
+   *   {  -6.0,  600 }, \
+   *   {  10.0,  700 }, \
+   *   { -10.0,  400 }, \
+   *   { -50.0, 2000 }
+   */
+
+  /**
+   * ----
+   * MMU3
+   * ----
+   * These values are compatible with MMU3 as they are defined in mm/s
+   */
+
+  #define MMU2_EXTRUDER_PTFE_LENGTH       42.3 // (mm)
+  #define MMU2_EXTRUDER_HEATBREAK_LENGTH  17.7 // (mm)
+
   #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
-    {  7.2, 1145 }, \
-    { 14.4,  871 }, \
-    { 36.0, 1393 }, \
-    { 14.4,  871 }, \
-    { 50.0,  198 }
+    { MMU2_EXTRUDER_PTFE_LENGTH,      MMM_TO_MMS(810) }, /* (13.5 mm/s) Fast load ahead of heatbreak */ \
+    { MMU2_EXTRUDER_HEATBREAK_LENGTH, MMM_TO_MMS(198) }  // ( 3.3 mm/s) Slow load after heatbreak
 
   #define MMU2_RAMMING_SEQUENCE \
-    {   1.0, 1000 }, \
-    {   1.0, 1500 }, \
-    {   2.0, 2000 }, \
-    {   1.5, 3000 }, \
-    {   2.5, 4000 }, \
-    { -15.0, 5000 }, \
-    { -14.0, 1200 }, \
-    {  -6.0,  600 }, \
-    {  10.0,  700 }, \
-    { -10.0,  400 }, \
-    { -50.0, 2000 }
+    { 0.2816,  MMM_TO_MMS(1339.0) }, \
+    { 0.3051,  MMM_TO_MMS(1451.0) }, \
+    { 0.3453,  MMM_TO_MMS(1642.0) }, \
+    { 0.3990,  MMM_TO_MMS(1897.0) }, \
+    { 0.4761,  MMM_TO_MMS(2264.0) }, \
+    { 0.5767,  MMM_TO_MMS(2742.0) }, \
+    { 0.5691,  MMM_TO_MMS(3220.0) }, \
+    { 0.1081,  MMM_TO_MMS(3220.0) }, \
+    { 0.7644,  MMM_TO_MMS(3635.0) }, \
+    { 0.8248,  MMM_TO_MMS(3921.0) }, \
+    { 0.8483,  MMM_TO_MMS(4033.0) }, \
+    { -15.0,   MMM_TO_MMS(6000.0) }, \
+    { -24.5,   MMM_TO_MMS(1200.0) }, \
+    {  -7.0,   MMM_TO_MMS( 600.0) }, \
+    {  -3.5,   MMM_TO_MMS( 360.0) }, \
+    {  20.0,   MMM_TO_MMS( 454.0) }, \
+    { -20.0,   MMM_TO_MMS( 303.0) }, \
+    { -35.0,   MMM_TO_MMS(2000.0) }
 
   /**
    * Using a sensor like the MMU2S
@@ -4459,11 +4523,26 @@
   #if HAS_PRUSA_MMU2S
     #define MMU2_C0_RETRY   5             // Number of retries (total time = timeout*retries)
 
+    /**
+     * This is called after the filament runout sensor is triggered to check if
+     * the filament has been loaded properly by moving the filament back and
+     * forth to see if the filament runout sensor is going to get triggered
+     * again, which should not occur if the filament is properly loaded.
+     *
+     * Thus, the MMU2_CAN_LOAD_SEQUENCE should contain some forward and
+     * backward moves. The forward moves should be greater than the backward
+     * moves.
+     *
+     * This is useless if your filament runout sensor is way behind the gears.
+     * In that case use {0, MMU2_CAN_LOAD_FEEDRATE}
+     *
+     * Adjust MMU2_CAN_LOAD_SEQUENCE according to your setup.
+     */
     #define MMU2_CAN_LOAD_FEEDRATE 800    // (mm/min)
     #define MMU2_CAN_LOAD_SEQUENCE \
-      {  0.1, MMU2_CAN_LOAD_FEEDRATE }, \
-      {  60.0, MMU2_CAN_LOAD_FEEDRATE }, \
-      { -52.0, MMU2_CAN_LOAD_FEEDRATE }
+      {   5.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      {  15.0, MMU2_CAN_LOAD_FEEDRATE }, \
+      { -10.0, MMU2_CAN_LOAD_FEEDRATE }
 
     #define MMU2_CAN_LOAD_RETRACT   6.0   // (mm) Keep under the distance between Load Sequence values
     #define MMU2_CAN_LOAD_DEVIATION 0.8   // (mm) Acceptable deviation
@@ -4474,6 +4553,68 @@
 
     // Continue unloading if sensor detects filament after the initial unload move
     //#define MMU_IR_UNLOAD_MOVE
+
+  #elif HAS_PRUSA_MMU3
+
+    // MMU3 settings
+
+    #define MMU2_MAX_RETRIES 3  // Number of retries (total time = timeout*retries)
+
+    // Nominal distance from the extruder gear to the nozzle tip is 87mm
+    // However, some slipping may occur and we need separate distances for
+    // LoadToNozzle and ToolChange.
+    // - +5mm seemed good for LoadToNozzle,
+    // - but too much (made blobs) for a ToolChange
+    #define MMU2_LOAD_TO_NOZZLE_LENGTH 87.0 + 5.0
+
+    // As discussed with our PrusaSlicer profile specialist
+    // - ToolChange shall not try to push filament into the very tip of the nozzle
+    // to have some space for additional G-code to tune the extruded filament length
+    // in the profile
+    // Beware - this value is used to initialize the MMU logic layer - it will be sent to the MMU upon line up (written into its 8bit register 0x0b)
+    // However - in the G-code we can get a request to set the extra load distance at runtime to something else (M708 A0xb Xsomething).
+    // The printer intercepts such a call and sets its extra load distance to match the new value as well.
+    #define MMU2_FILAMENT_SENSOR_POSITION    0   // (mm)
+    #define MMU2_LOAD_DISTANCE_PAST_GEARS    5   // (mm)
+    #define MMU2_TOOL_CHANGE_LOAD_LENGTH MMU2_FILAMENT_SENSOR_POSITION + MMU2_LOAD_DISTANCE_PAST_GEARS // (mm)
+
+    #define MMU2_LOAD_TO_NOZZLE_FEED_RATE        20.0 // (mm/s)
+    #define MMU2_UNLOAD_TO_FINDA_FEED_RATE      120.0 // (mm/s)
+
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE 50.0 // (mm/s)
+    #define MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK     -5.0 // (mm) Amount to adjust the length for verifying load-to-nozzle
+
+    // The first thing the MMU does is initialize its axis.
+    // Meanwhile the E-motor will unload 20mm of filament in about 1 second.
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH    80.0 // (mm)
+    #define MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE 80.0 // (mm/s)
+
+    // After loading a new filament, the printer will extrude this length of filament
+    // then retract to the original position. This is used to check if the filament sensor
+    // reading flickers or filament is jammed.
+    #define MMU2_CHECK_FILAMENT_PRESENCE_EXTRUSION_LENGTH (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH + MMU2_VERIFY_LOAD_TO_NOZZLE_TWEAK + MMU2_FILAMENT_SENSOR_POSITION) // (mm)
+
+    #define MMU_HAS_CUTTER            // Enable cutter related functionalities
+    //#define MMU_FORCE_STEALTH_MODE  // Force stealth mode and disable menu item
+
+    /**
+     * SpoolJoin Consumes All Filament -- EXPERIMENTAL
+     *
+     * SpoolJoin normally triggers when FINDA sensor untriggers while printing.
+     * This is the default behaviour and it doesn't consume all the filament
+     * before triggering a filament change. This leaves some filament in the
+     * current slot and before switching to the next slot it is unloaded.
+     *
+     * Enabling this option will trigger the filament change when both FINDA
+     * and Filament Runout Sensor triggers during the print and it allows the
+     * filament in the current slot to be completely consumed before doing the
+     * filament change. But this can cause problems as a little bit of filament
+     * will be left between the extruder gears (thinking that the filament
+     * sensor is triggered through the gears) and the end of the PTFE tube and
+     * can cause filament load issues.
+     */
+    //#define MMU_SPOOL_JOIN_CONSUMES_ALL_FILAMENT
+
   #else
 
     /**
@@ -4496,7 +4637,7 @@
 
   //#define MMU2_DEBUG  // Write debug info to serial output
 
-#endif // HAS_PRUSA_MMU2
+#endif // HAS_PRUSA_MMU2 || HAS_PRUSA_MMU3
 
 /**
  * Advanced Print Counter settings